BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Physics & Astronomy - ECPv6.16.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Physics & Astronomy
X-ORIGINAL-URL:https://uwm.edu/physics
X-WR-CALDESC:Events for Physics & Astronomy
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Chicago
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20180311T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20181104T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20190310T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20191103T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20200308T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20201101T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20210314T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20211107T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20220313T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20221106T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20230312T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20231105T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20240310T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20241103T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20250309T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20251102T070000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241018T153000
DTEND;TZID=America/Chicago:20241018T170000
DTSTAMP:20260611T171529
CREATED:20241007T125538Z
LAST-MODIFIED:20241007T125538Z
UID:10435339-1729265400-1729270800@uwm.edu
SUMMARY:Physics Colloquium - Catalin Picu
DESCRIPTION:Catalin Picu\, Dept. of Mechanical\, Aerospace & Nuclear Engineering\, Rensselaer Polytechnic Institute \nSoft Network Materials: Structure-Properties Relations \nMany materials have a stochastic network of filaments as their main structural component and are referred to collectively as ‘network materials.’ This class includes all biological connective tissue\, the extracellular matrix\, the intra-cellular cytoskeleton\, paper and cellulose-based products\, nonwovens\, as well as various molecular networks such as rubber\, gels and thermosets. \nThis talk reviews the relation between the structure of athermal networks and the material-scale mechanical properties\, focusing on identifying commonalities between these very diverse material systems. Properties of interest include the non-linear elastic response\, the viscoelastic response\, strength and toughness. The effect of inter-fiber adhesion on network mechanics will be also discussed. The talk provides a comprehensive overview of the mechanics of this broad class of materials. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-catalin-picu/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241011T153000
DTEND;TZID=America/Chicago:20241011T170000
DTSTAMP:20260611T171529
CREATED:20241003T125926Z
LAST-MODIFIED:20241003T125926Z
UID:10435338-1728660600-1728666000@uwm.edu
SUMMARY:Physics Colloquium - Hongbin Li
DESCRIPTION:Hongbin Li\, Professor\, Department of Chemistry\, The University of British Columbia \nRational Engineering of Protein-based Biomaterials: from single molecule traits to functional material properties \nIn their biological settings\, elastomeric proteins function as molecular springs\, thereby establishing elastic connections\, plus providing mechanical strength and elasticity. With an ability to change their shape (evolving from simple\, random coil-like structures to a more sophisticated beads-on-a string formation)\, they fulfill their biological function. These complex protein polymers exhibit distinct mechanical properties. \nThe development of single molecule force spectroscopy techniques has made it possible to directly probe these properties\, at the single molecule level\, allowing us to understand their molecular design principles. This knowledge has enabled us to engineer novel elastomeric proteins to achieve tailored and well-defined nanomechanical properties. \nIn this talk\, specific examples will be given on engineering protein hydrogels to mimic the passive elastic properties of muscle\, as well as highly stiff and highly tough protein biomaterials to mimic the mechanical properties of cartilage. These studies will pave the way to utilizing proteins as building blocks to engineer new generations of protein-based biomaterials for diverse applications in biomedical engineering as well as material sciences. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-hongbin-li/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240503T153000
DTEND;TZID=America/Chicago:20240503T170000
DTSTAMP:20260611T171529
CREATED:20240301T171200Z
LAST-MODIFIED:20240423T152504Z
UID:10435336-1714750200-1714755600@uwm.edu
SUMMARY:Physics Colloquium - Segev BenZvi
DESCRIPTION:Segev BenZvi\, Assoc. Professor\, Department of Physics\, University of Rochester \nMeasuring Cosmic Expansion with the Dark Energy Spectroscopic Instrument \nSince the first observations of the accelerating expansion of the universe at the end of the 1990s\, astronomers and physicists have struggled to understand dark energy\, a mysterious repulsive force that drives the acceleration. A number of models of dark energy exist. The simplest (the cosmological constant)\, assumes dark energy is non-interacting and is the same everywhere in space and time. Different models predict subtely different features in the large-scale structure of the universe.   We are now entering an era of new photometric and spectroscopic surveys which can discriminate different models of dark energy with unprecedented precision.    \nIn this talk\, I will present the latest results from the Dark Energy Spectroscopic Instrument (DESI)\, a fiber-fed\, robotically-actuated galaxy redshift survey that has been in operation at Kitt Peak National Observatory since mid-2021.  In April 2024\, the DESI Collaboration released its results from the first year of data taking.   I will describe the performance of DESI\, summarize the first year of data and our cosmological analyses\, and present prospects for future results. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-segev-benzvi/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240426T153000
DTEND;TZID=America/Chicago:20240426T170000
DTSTAMP:20260611T171529
CREATED:20240301T171028Z
LAST-MODIFIED:20240426T125548Z
UID:10435335-1714145400-1714150800@uwm.edu
SUMMARY:Physics Colloquium - Rob Pisarski
DESCRIPTION:Rob Pisarski\, Distinguished Scientist\, Department of Physics\, Brookhaven National Laboratory \nThe Ugly Duckling and the Swan: The Quark-Gluon Plasma and Heavy Ion Collision \nI give a pedagogical and historical overview of the search for the Quark-Gluon plasma (QGP) in the collisions of heavy ions.  I begin with a brief review of why we expect a QGP to be formed at high temperature.  In this\, numerical simulations in lattice Quantum ChromoDynamics (QCD) form the bedrock of the field.  In particular\, they demonstrate the relationship between deconfinement and the restoration of chiral symmetry. \nAt the SPS at CERN\, I discuss the suppression of J/Psi mesons\, and the excess of dileptons below the rho meson.  Bjorken first noticed that a “plateau” may emerge at high energies\, and produce a regime at high temperature\, and low chemical potential.  At colliders such as RHIC\, at Brookhaven\, and the LHC\, at CERN\, I discuss two notable signals:  the utility of nearly ideal hydrodynamics\, and jet quenching.  The new frontier is going down to moderate collision energies\, which there is net excess of baryons.  Possible phenomena in this region include a critical end point and moat regimes. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-rob-pisarski/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240419T153000
DTEND;TZID=America/Chicago:20240419T170000
DTSTAMP:20260611T171529
CREATED:20240301T170912Z
LAST-MODIFIED:20240412T134014Z
UID:10435334-1713540600-1713546000@uwm.edu
SUMMARY:Physics Colloquium - Joel Nowitzke
DESCRIPTION:Joel Nowitzke\, PhD Candidate\, UW-Milwaukee \nModeling and Measurements of Network Formation and Viscoelastic Behavior of Folded Protein-Based Hydrogels \nProteins are vital for various daily functions and are even used in creating biocompatible materials through chemical crosslinking. However\, predicting the mechanical properties of these materials is challenging due to the random orientation of constituent molecules within the network. Bridging the gap between nanoscopic and macroscopic scales is essential for formulating predictable biomaterials. Through a combination of experimental methods and computational simulations\, including Single Molecule Magnetic Tweezers and Steered Molecular Dynamics Simulations\, we aim to understand these properties. This approach involves determining the relative stability of pulling geometries and simulating protein unfolding to create accurate models. By subjecting simulated networks to external stress\, we assess their behavior compared to experimental data\, ensuring realistic predictions. \nThe event flyer is available for download here.
URL:https://uwm.edu/physics/event/physics-colloquium-joel-nowitzke/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240405T153000
DTEND;TZID=America/Chicago:20240405T170000
DTSTAMP:20260611T171529
CREATED:20240301T170802Z
LAST-MODIFIED:20240312T171812Z
UID:10435333-1712331000-1712336400@uwm.edu
SUMMARY:Physics Colloquium - Marcus Noack
DESCRIPTION:Dr. Marcus Noack\, Research Scientist\, Lawrence Berkeley National Lab \nNext-Generation Gaussian Processes for   Function Approximation\, Uncertainty Quantification\, and Decision-Making \nGaussian processes (GPs) and Gaussian-related stochastic processes are powerful tools for function approximation\, uncertainty quantification\, global optimization\, and autonomous data acquisition due to their robustness\, analytical tractability\, and natural inclusion of Bayesian uncertainty estimates. Even so\, Gaussian processes are often criticized for poor approximation performance and neck-breaking computational costs in real-life applications.  The reason for this gap\, however\, is not the methodology itself but rather a user-caused lack of flexibility and domain awareness of the underlying prior probability distribution.   \nIn this talk\, I address many challenges of GPs that might inhibit optimal performance.  We will discover hands-on solutions and tools that make implementation easy.  The key takeaway for the audience will be a better understanding of Gaussian processes and ways to customize them for optimal performance. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-marcus-noack/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240329T153000
DTEND;TZID=America/Chicago:20240329T170000
DTSTAMP:20260611T171529
CREATED:20240311T212140Z
LAST-MODIFIED:20240311T212140Z
UID:10435337-1711726200-1711731600@uwm.edu
SUMMARY:Physics Colloquium - Gabor Csathy
DESCRIPTION:Professor Gabor Csathy\, Department of Physics and Astronomy\, Purdue University \nEmergent Particles and Topology in Flat Landau Bands \nElectronic systems with flat energy bands support a variety of topological phases of current interest.  The two-dimensional electron gas in the fractional quantum Hall regime is such a system.  Ground states of this system found an elegant description in terms of emergent particles called composite fermions.  \nIn this talk we review the topological ground states and some of their basic properties and discuss two recent discoveries: fractional quantum Hall states associated with flux-six composite fermions and a bubble phase of composite fermions. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-gabor-csathy/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240308T153000
DTEND;TZID=America/Chicago:20240308T170000
DTSTAMP:20260611T171529
CREATED:20240226T180637Z
LAST-MODIFIED:20240228T194456Z
UID:10435332-1709911800-1709917200@uwm.edu
SUMMARY:Physics Colloquium - Alan Wiseman
DESCRIPTION:The Self-force on Static and Dynamic Charges in Schwarzschild Spacetime Using the Method of Images \nAlan Wiseman\, Assoc. Professor\, Dept. of Physics\, UW-Milwaukee\nOne of the most basic examples of a self-force phenomenon (sometimes called the radiation reaction force) is that of a small\, charged particle near a large spherical mass such as a Schwarzschild black hole.  If the particle is held stationary\, there are novel electrostatic forces on the particle. If the particle is orbiting the mass\, the fields created by the particle back-react on the particle and cause it to depart from its otherwise free-fall motion. There are many ways to solve for the forces and motion in these circumstances\, but past solutions have involved considerable technical machinery\, and the results are messy and “non-intuitive”.  \nI will take a fundamentally new approach to this problem using the method of image charges. This approach makes the origin of the forces easier to visualize.  In the talk\, I will make a clear analogy between this new work and that of familiar examples of the method of images in electrostatics. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-alan-wiseman/
LOCATION:Lapham 162\, 3209 N. Maryland Ave.\, Milwaukee\, 53211
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 162 3209 N. Maryland Ave. Milwaukee 53211;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240301T153000
DTEND;TZID=America/Chicago:20240301T163000
DTSTAMP:20260611T171529
CREATED:20240220T150216Z
LAST-MODIFIED:20240220T150216Z
UID:10435331-1709307000-1709310600@uwm.edu
SUMMARY:Physics Colloquium - Sarah Vigeland
DESCRIPTION:Searching for a Gravitational Wave Background with Pulsar Timing Arrays \nSarah Vigeland\, Asst. Professor\, Dept. of Physics\, UW-Milwaukee\nPulsar timing arrays use observations of millisecond pulsars to detect nanohertz gravitational waves.  The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) Collaboration has recently released their 15-year data set containing observations of 68 millisecond pulsars.  These data contain evidence for Hellings-Downs correlations\, which are characteristic of a gravitational wave background.  \nIn this talk\, I will present these results\, and discuss the spectral properties of the signal and implications for the astrophysical source. I will also discuss prospects for detecting other types of gravitational wave sources with pulsar timing arrays\, including individual supermassive binary black holes. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-sarah-vigeland/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240223T153000
DTEND;TZID=America/Chicago:20240223T170000
DTSTAMP:20260611T171529
CREATED:20240208T135341Z
LAST-MODIFIED:20240220T150248Z
UID:10435330-1708702200-1708707600@uwm.edu
SUMMARY:Physics Colloquium - Helvi Witek
DESCRIPTION:CSI Gravity: Investigating Mysteries of Fundamental Physics with Black Holes \nDr. Helvi Witek\, Asst. Professor\, Dept. of Physics\, UIUC\nBlack holes are among the most exciting predictions of Einstein’s theory of general relativity\, composed of the fabric of spacetime itself. Observations of black holes offer unique access to extreme gravity\, and they enable us to investigate long-standing puzzles in fundamental physics ranging from dark matter to the very nature of gravity itself. \nIn my presentation\, I will first provide an overview of recent black hole observations\, including gravitational wave detections. I will then discuss how we produce theoretical models of black hole mergers and gravitational waves using numerical relativity\, that are needed to correctly interpret the observations.  I will conclude with a taster on how we can use numerical relativity simulations to learn about the nature of gravity or new (axionlike) particles. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-helvi-witek/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20231201T150000
DTEND;TZID=America/Chicago:20231201T170000
DTSTAMP:20260611T171529
CREATED:20231101T202803Z
LAST-MODIFIED:20231130T211039Z
UID:10435329-1701442800-1701450000@uwm.edu
SUMMARY:Physics Colloquium - Francis Halzen
DESCRIPTION:IceCube:  Opening a Neutrino Window on the Universe from the South Pole \nProfessor Francis Halzen\, Professor and Director of IceCube\, Department of Physics\, University of Wisconsin-Madison \nBelow the geographic South Pole\, the IceCube project has transformed one cubic kilometer of natural Antarctic ice into a neutrino detector. IceCube detects more than 100\,000 neutrinos per year in the GeV to 10 PeV energy range. From those\, we have isolated a flux of high-energy neutrinos originating beyond our Galaxy\, with an energy flux that is comparable to that of the extragalactic high-energy photon flux observed by the NASA Fermi satellite.  With a decade of data\, we have identified their first sources\, which point to the obscured dense cores associated with the supermassive black holes of some active galaxies as the origin of high-energy neutrinos (and cosmic rays!). \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-professor-francis-halzen/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20231117T150000
DTEND;TZID=America/Chicago:20231117T170000
DTSTAMP:20260611T171529
CREATED:20231101T202535Z
LAST-MODIFIED:20231101T202535Z
UID:10435328-1700233200-1700240400@uwm.edu
SUMMARY:Physics Colloquium - Roshanak Etemadpour
DESCRIPTION:Roshanak Etemadpour\, Ph. D. candidate\, Department of Physics\, University of Wisconsin-Milwaukee \nThe title and abstract for this talk will be posted when made available.
URL:https://uwm.edu/physics/event/physics-colloquium-roshanak-etemadpour/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20231110T153000
DTEND;TZID=America/Chicago:20231110T163000
DTSTAMP:20260611T171529
CREATED:20231101T202041Z
LAST-MODIFIED:20231103T205221Z
UID:10435327-1699630200-1699633800@uwm.edu
SUMMARY:Physics Colloquium - Min Gyu Kim
DESCRIPTION:Assistant Professor Min Gyu Kim\, UWM Department of Physics \nHow to See Antiferromagnetic Domains and Domain Walls \nIn this talk\, I will introduce myself and discuss my journey as an experimental condensed matter physicist\, explaining the field briefly. I will then focus on my recent research activities and interests\, specifically on imaging antiferromagnetic domains and domain walls.  \nMagnetic domains play a fundamental role in the physics of magnetism\, and their manipulation can be achieved through domain wall (DW) propagation. The discovery of electric-field-driven switching of antiferromagnetic (AFM) spin arrangement has reignited interest in the field of spintronics using antiferromagnets. Despite the potential of antiferromagnetic materials for use in future electronic devices\, the dynamics of antiferromagnetic domain walls are poorly understood due in large part to the lack of techniques for visualizing AFM DWs. In this presentation\, I will introduce a recently developed coherent X-ray imaging technique\, a diffraction-based full-field imaging method that produces real-time\, direct space images. With this technique\, we can study fluctuating micrometer-scale antiferromagnetic domains on timescales from 10-2 to 103 sec.\, with the potential to improve the resolution to ~ 10-11  sec. in the future. \nThe event flyer can be downloaded here.
URL:https://uwm.edu/physics/event/physics-colloquium-min-gyu-kim/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230503T153000
DTEND;TZID=America/Chicago:20230503T163000
DTSTAMP:20260611T171529
CREATED:20230417T220007Z
LAST-MODIFIED:20230421T131743Z
UID:10435326-1683127800-1683131400@uwm.edu
SUMMARY:Physics Colloquium - Ben Owen
DESCRIPTION:Professor Ben Owen\, Department of Physics & Astronomy\, Texas Tech University \nMulti-messenger Astrophysics from LIGO to Cosmic Explorer \nLIGO’s detections of gravitational waves from binary mergers made history and yielded insights into extreme gravity and matter.  With more detections\, unusual mergers will yield ever more information on new populations.  What other gravitational wave signals will be detected\, from LIGO to Cosmic Explorer?  What physics and astrophysics will we learn from them\, especially in tandem with new and planned electromagnetic astronomy facilities?   \nI summarize some highlights from detections of binary mergers in LIGO data and from current searches for other signals\, and sketch the exciting frontiers of what could be learned with future searches ranging from the next year to the era of Cosmic Explorer. \nThe event flyer is available for download here
URL:https://uwm.edu/physics/event/physics-colloquium-ben-owen/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230428T153000
DTEND;TZID=America/Chicago:20230428T163000
DTSTAMP:20260611T171529
CREATED:20230213T192500Z
LAST-MODIFIED:20230405T151617Z
UID:10435321-1682695800-1682699400@uwm.edu
SUMMARY:Physics Colloquium - Dr. Horia Petrache
DESCRIPTION:Dr. Horia Petrach\, Department of Physics\, Indiana & Purdue Universities \nInteractions of Neuromodulators with Model Lipid Membranes \nNeurotransmitters and neuromodulators typically function by binding to specialized receptors in neuronal membranes. In this work\, we study two different neurotransmitters that also function as neuromodulators\, namely dopamine (DA) and adenosine triphosphate (ATP). Dopamine is best known as the feel-pleasure hormone while ATP is best known for being the source of energy in the cell. Using a combination of scattering and spectroscopic methods\, we show that both DA and ATP have an affinity to lipid membranes lacking specialized receptors. In particular\, by x-ray scattering and NMR spectroscopy we show that both DA and ATP interact with lipid headgroups at the membrane-water interface. As a consequence\, the membrane surface potential is modified as measured by Dynamic Light Scattering. Our results can contribute to understanding the role of lipid membranes in neuromodulation. \nThe event flyer is available for download here.
URL:https://uwm.edu/physics/event/physics-colloquium-dr-horia-petrache/
LOCATION:WI
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230317T153000
DTEND;TZID=America/Chicago:20230317T163000
DTSTAMP:20260611T171529
CREATED:20230127T204607Z
LAST-MODIFIED:20230207T154836Z
UID:10435317-1679067000-1679070600@uwm.edu
SUMMARY:Physics Colloquium -  Pierre-Alexandre Gourdain
DESCRIPTION:Pierre-Alexandre Gourdain\, University of Rochester \nThe Impact of Electron Physics in High Energy Density Plasmas \nThe study of high energy density plasmas (HEDP) allows researchers to study the impact of microscopic phenomena on macroscopic scales by using plasmas dense enough to be probed by high energy photons (i.e. visible\, UV\, X-ray). This probe allows us to use readily available detectors to make precise\, two-dimensional measurements of the electron density and infer the electron flow speed and magnetic field. \nIn this talk\, I will highlight how electron physics can shed some light on how long-range interactions can create macroscopic behavior\, such as collision-less shocks and particle acceleration\, but also how it can be used to test statistical integral operators that can capture more exotic phenomena than simple hard-sphere collisions\, which yield Gaussian distributions. \nThe event flyer may be downloaded here
URL:https://uwm.edu/physics/event/physics-colloquium-pierre-alexandre-gourdain/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230310T153000
DTEND;TZID=America/Chicago:20230310T163000
DTSTAMP:20260611T171529
CREATED:20230127T204433Z
LAST-MODIFIED:20230227T173154Z
UID:10435316-1678462200-1678465800@uwm.edu
SUMMARY:Physics Colloquium -  Daniel Vrinceanu
DESCRIPTION:Daniel Vrinceanu\, Texas Southern University \nRadiative Cascade in Rydberg Atoms \nThis talk is an introduction to the physics of Rydberg atoms. The two complementary flavors of Rydberg atoms\, high and low angular momentum states\, have contrasting properties as they relate to the correspondence principle that bridges classical behavior to quantum mechanics. Dynamic symmetries allow a unified point of view to investigate this correspondence. Highly excited atoms dissipate their energy in different ways depending on their initial angular momentum: low angular momentum states make transitions in large energy increments\, quickly approaching the ground state\, while high angular momentum states make small steps\, slowly spiraling towards lower states. \nThe event flyer may be downloaded here.
URL:https://uwm.edu/physics/event/physics-colloquium-daniel-vrinceanu/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20211029T140000
DTEND;TZID=America/Chicago:20211029T153000
DTSTAMP:20260611T171529
CREATED:20200303T174247Z
LAST-MODIFIED:20211015T151452Z
UID:10390516-1635516000-1635521400@uwm.edu
SUMMARY:Physics Colloquium - Mark Williamsen
DESCRIPTION:Mark Williamsen\, Quantum Design\, Inc \nApplications of AC Bridges in Cryogenic Measurements \nAC (alternating current) bridges have proven to be useful in making precise measurements at low temperature\, including thermometry as well as length change with respect to either thermal expansion (dilatometry) or applied magnetic field (magnetostriction).  Techniques now in use allow one leg of the bridge to be placed at the cryogenic sample site while the other legs remain at room temperature\, with the intervening temperature gradient being imposed along a length of coaxial cable.  Using this method\, length change measurements at atomic scale have recently been used to study a hidden order phase in the heavy fermion system URu2Si2.  Plans are now underway to apply this sensitive measurement to a variety of single crystal and polycrystalline samples. \nRelevant citing:   S. Ran\, G. M. Schmiedeshoff\, N. Pouse\, I. Jeon\, N. P. Butch\, R. B. Adhikari\, C. C. Almasan &  M. B. Maple; “Rapid suppression of the energy gap and the possibility of a gapless hidden order state in URu2−xRexSi2\,”  Philosophical Magazine\, 99:14\, 1751-1762\, DOI: 10.1080/14786435.2019.1600756 (2019). \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-mark-williamsen/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20210924T150000
DTEND;TZID=America/Chicago:20210924T160000
DTSTAMP:20260611T171529
CREATED:20210921T184718Z
LAST-MODIFIED:20210921T190112Z
UID:10390518-1632495600-1632499200@uwm.edu
SUMMARY:Physics Colloquium - Dr. Morgan Lynch
DESCRIPTION:Dr. Morgan Lynch \nA Brief History of Quantum Field Theory in Curved Spacetime \nThe incorporation of classical general relativity into the framework of quantum field theory yielded a rather surprising result — thermodynamic particle production. In short\, for fundamental deformations in the structure of spacetime\, quantum mechanics necessitates the creation of thermalized particles from the vacuum.  One such phenomenon\, known as the Unruh effect\, causes empty space to effervesce a thermal bath of particles when viewed by an observer undergoing uniformly accelerated motion.  \nIn this presentation\, we will review the timeline of conceptual discoveries which led to broad classes of these intriguing thermodynamic phenomena. Beginning with the original discovery of particles created by the expansion of the universe\, we will cover a brief history of quantum field theory in curved spacetime\, culminating in the first experimental observation of the Unruh effect\, and other aspects of acceleration-induced thermality\, in high energy channeling radiation. \nEvent flyer is available here
URL:https://uwm.edu/physics/event/physics-colloquium-dr-morgan-lynch/
LOCATION:KIRC 1150\, 3135 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0754962;-87.8839451
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=KIRC 1150 3135 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3135 N. Maryland Ave.:geo:-87.8839451,43.0754962
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20200508T153000
DTEND;TZID=America/Chicago:20200508T163000
DTSTAMP:20260611T171529
CREATED:20200303T174053Z
LAST-MODIFIED:20200326T163253Z
UID:10390513-1588951800-1588955400@uwm.edu
SUMMARY:Michelle Larson: Postponed Until AY 2020/2021
DESCRIPTION:Michelle Larson\, Adler Planetarium \nTitle and abstract TBA
URL:https://uwm.edu/physics/event/physics-colloquium-michelle-larson/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20200501T153000
DTEND;TZID=America/Chicago:20200501T163000
DTSTAMP:20260611T171529
CREATED:20200217T144849Z
LAST-MODIFIED:20200326T163335Z
UID:10388512-1588347000-1588350600@uwm.edu
SUMMARY:Ionel Popa: Postponed Until Fall 2020
DESCRIPTION:Ionel Popa\, UWM Physics Faculty \nTitle and abstract TBA
URL:https://uwm.edu/physics/event/physics-colloquium-ionel-popa/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20200403T153000
DTEND;TZID=America/Chicago:20200403T163000
DTSTAMP:20260611T171529
CREATED:20200217T144606Z
LAST-MODIFIED:20230120T120650Z
UID:10387510-1585927800-1585931400@uwm.edu
SUMMARY:Physics PhD Colloquium - Deep Chatterjee
DESCRIPTION:Deep Chatterjee\, University of Wisconsin-Milwaukee PhD Candidate \nTitle and abstract TBA
URL:https://uwm.edu/physics/event/physics-phd-colloquium-deep-chatterjee/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20200306T153000
DTEND;TZID=America/Chicago:20200306T163000
DTSTAMP:20260611T171529
CREATED:20200210T220750Z
LAST-MODIFIED:20200210T220750Z
UID:10386508-1583508600-1583512200@uwm.edu
SUMMARY:Physics Colloquium - Wynn Ho
DESCRIPTION:Wynn Ho\, Haverford College \nThe Impact of Pulsar Glitches and NICER on Gravitational Wave Searches \nPulsars are the rotating remnant of massive stars and are unique probes of dense matter physics.   They are famous for having very precisely measured spin rates\, and this spin evolves extremely regularly for most pulsars.  However\, young pulsars can occasionally undergo sudden spin changes\, known as glitches.   \nIn this talk\, I will introduce pulsar glitches and the superfluidity model of a glitch. I will then discuss how currently detected gravitational wave transients might be due to a stellar oscillation in glitching pulsars.  Finally\, I will describe the NICER mission on the International Space Station and its important role in enabling gravitational wave searches through tracking the spin of young\, glitching pulsars. \nEvent flyer is available here
URL:https://uwm.edu/physics/event/physics-colloquium-wynn-ho/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20200228T153000
DTEND;TZID=America/Chicago:20200228T163000
DTSTAMP:20260611T171529
CREATED:20191119T152246Z
LAST-MODIFIED:20200122T150008Z
UID:10384506-1582903800-1582907400@uwm.edu
SUMMARY:Physics Colloquium - Gregory Rudnick
DESCRIPTION:Gregory Rudnick\, University of Kansas \nThe Life Cycle of Galaxies in Clusters Over 10 Billion Years \nGalaxies live in a range of environments\, characterized by their volume density. For example\, the densest regions of the Universe are in galaxy clusters\, which contain hundreds to thousands of galaxies all in pseudo gravitational virial equilibrium. These dense environments can in turn alter the properties of the galaxies themselves in striking ways via a variety of gravitational and hydrodynamic processes. The result of these processes alter galaxy shapes\, their internal dynamics\, and shuts off the formation of new stars. I will present work I have been doing to characterize the evolution of galaxies in clusters over the past 10 billion years as a way of understanding how the environment can affect galaxies.  \nI will describe how we have used extensive multi-wavelength data sets on distant clusters to form a picture in which infalling cluster galaxies likely have their gas supplies cut off\, their morphologies transformed\, and may even experience epochs of very frequent mergers.  I will then describe new results from a large program called Gemini Observations of Galaxies in Rich Environments (GOGREEN) which is the premier spectroscopic survey of distant clusters.  With the GOGREEN data\, we are finding that the quenching of galaxies in dense environments at high redshift may proceed very differently from that at redshifts less than one\, requiring a revision of our thoughts on how environment affects galaxy evolution at large lookback times. \nEvent flyer available here.
URL:https://uwm.edu/physics/event/physics-colloquium-greg-rudnick/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20200228T140000
DTEND;TZID=America/Chicago:20200228T150000
DTSTAMP:20260611T171529
CREATED:20200225T153653Z
LAST-MODIFIED:20200225T153653Z
UID:10390512-1582898400-1582902000@uwm.edu
SUMMARY:Math and Physics Joint Colloquium - Dr. Tomáš Bzdušek
DESCRIPTION:Dr. Tomáš Bzdušek\, Paul Scherrer Institute and University of Zurich \nMathematics of Topological Insulators and Semimetals \nMany properties of crystalline materials\, such as conductivity or the tendency to become magnetically ordered at low temperatures\, derive from their so-called “electronic band structure.” Although this is an established notion in solid state physics\, dating back to the early days of quantum mechanics\, our understanding of electronic band structure has been greatly challenged and revolutionized over the past 15 years by the discovery of so-called topological materials. \nIn this colloquium\, I will first show how topology enters the description of electrons in crystalline solids – whether they are insulators\, semimetals or metals. This is achieved by encoding the electron Hamiltonian as a fiber bundle\, and by characterizing this bundle using homotopy theory. In the second part\, I will focus on our latest results\, which reveal a previously overlooked non-Abelian topological invariant. This discovery suggests possible braiding phenomena in the electronic band structure\, which I illustrate on a material example ZrTe. \nColloquium flyer available here
URL:https://uwm.edu/physics/event/math-and-physics-joint-colloquium-dr-tomas-bzdusek/
LOCATION:EMS E495\, 3200 North Cramer Street\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20200131T153000
DTEND;TZID=America/Chicago:20200131T163000
DTSTAMP:20260611T171529
CREATED:20191119T152055Z
LAST-MODIFIED:20200122T145806Z
UID:10384504-1580484600-1580488200@uwm.edu
SUMMARY:Physics Colloquium - Andrew Ferguson
DESCRIPTION:Andrew Ferguson\, University of Chicago \nReconstructing All-Atom Protein Folding from Low-Dimensional Experimental Time Series \nData-driven modeling and machine learning present powerful tools that are opening up new paradigms and opportunities in the understanding\, discovery\, and design of soft and biological materials.  In the first part of this talk\, I will describe an approach integrating ideas from dynamical systems theory and nonlinear manifold learning to reconstruct multidimensional protein folding funnels from the time evolution of single experimentally measurable observables. In the second part of this talk\, I will describe our use of deep learning to estimate slow collective variables from molecular simulation trajectories and the use of these coordinates to train highly efficient latent space molecular simulators. By combining these two ideas it is possible to reconstruct all-atom molecular configurations from one-dimensional time series in experimentally measurable observables. \nEvent flyer is available here
URL:https://uwm.edu/physics/event/physics-colloquium-andrew-ferguson/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191206T153000
DTEND;TZID=America/Chicago:20191206T163000
DTSTAMP:20260611T171529
CREATED:20190827T143041Z
LAST-MODIFIED:20191127T171451Z
UID:10384500-1575646200-1575649800@uwm.edu
SUMMARY:Physics Colloquium - Chuck Steidel
DESCRIPTION:Chuck Steidel\, Caltech \nImaging the “Baryon Cycle” of Forming Galaxies \nThe rapid increase in the universal star formation density between z~6 and z~2 (12.5-10.5 Gyr ago) was driven by high rates of accretion onto galaxy-scale dark matter halos\, but was simultaneously modulated by energetic feedback from massive stars\, supernovae\, and AGN activity whose large-scale effects remain uncertain.  The competition between rapid accretion from the intergalactic medium and outflows driven by sources of energy and momentum originating near a galaxy’s center is arguably the least well-understood aspect of the current galaxy formation paradigm. But the “battleground” for the competition is the so-called “circumgalactic medium” (CGM)\, a large (200-300 kpc) reservoir of diffuse\, multi-phase gas whose temperature\, density\, metal content\, and kinematics are uniquely sensitive to accreting or outflowing baryons on scales beyond that of the central galaxy.  \nAfter an overview of our current understanding of the CGM surrounding high redshift galaxies\, I will present new observations (and some preliminary interpretation) using extremely deep imaging spectroscopy with the recently-commissioned “Keck Cosmic Web Imager” (KCWI).  KCWI provides continuous\, spatially-resolved maps — with unprecedented sensitivity – of diagnostic emission and absorption lines on transverse scales of 1->200 Kpc arising from circumgalactic gas around forming galaxies at z~2-3. \nEvent flyer available here
URL:https://uwm.edu/physics/event/physics-colloquium-to-be-announced-2019-12-06/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20191129
DTEND;VALUE=DATE:20191130
DTSTAMP:20260611T171529
CREATED:20190827T143041Z
LAST-MODIFIED:20190923T142230Z
UID:10384498-1574985600-1575071999@uwm.edu
SUMMARY:No Physics Colloquium - Thanksgiving Break
DESCRIPTION:No Physics Colloquium this week due to the Thanksgiving holiday.
URL:https://uwm.edu/physics/event/physics-colloquium-to-be-announced-2019-11-29/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191122T153000
DTEND;TZID=America/Chicago:20191122T163000
DTSTAMP:20260611T171529
CREATED:20190827T143041Z
LAST-MODIFIED:20191111T152626Z
UID:10384496-1574436600-1574440200@uwm.edu
SUMMARY:Physics Colloquium - Peter M. Hoffmann
DESCRIPTION:Peter M. Hoffmann Wayne State University \nThe Physics of Life: Molecular Machines \nLiving beings are based on nanoscale machinery. This is no accident: the nanoscale is the only length scale at which autonomous\, self-constructing machinery is possible. Only at this scale do thermal\, electrical\, chemical and mechanical energy scales converge. Moreover\, this scale is dominated by thermal chaos. These unique circumstances give nanoscale systems the ability to easily transform different types of energy into each other and to self-assemble into ordered structures. Although living cells have taken advantage of the physics of the nanoscale for billions of years\, technology is just beginning to exploit the very different rules governing this scale. \nIn this talk\, I will give examples from the mechanical behavior of nanoconfined liquids and the mechanics of single molecules\, but the talk will focus on the story of molecular machines\, which connect physics to biology and illustrate how life is a game played at the nanoscale. At this tiny scale\, thermal noise meets molecular structure and chaos becomes order. \nEvent flyer available here
URL:https://uwm.edu/physics/event/physics-colloquium-to-be-announced-2019-09-13-2019-11-22/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191115T153000
DTEND;TZID=America/Chicago:20191115T163000
DTSTAMP:20260611T171529
CREATED:20190827T143041Z
LAST-MODIFIED:20191104T162711Z
UID:10384494-1573831800-1573835400@uwm.edu
SUMMARY:Physics Colloquium - Kristy McQuinn
DESCRIPTION:Kristy McQuinn\, Rutgers University \nThe Baryon Cycle in the Smallest of Star-Forming Galaxies \nOur view of galaxy evolution has expanded to include not just the evolution of individual galaxy components (gas\, stars\, chemical elements)\, but the cyclical interplay of a galaxy with its surroundings. Frequently termed the ‘baryon cycle’\, the galaxy evolution framework now includes: how gas is accreted onto galaxies\, turned in stars\, ejected out of galaxies via energetic feedback processes\, and potentially re-accreted. The impact of the baryon cycle is amplified in the shallow potential wells of the smallest of star-forming galaxies. This is born out in cosmological simulations of the universe where low mass galaxies act as boundary conditions to structure formation and provide stringent tests of baryon and dark matter physics.  \nIn this talk\, I will present observational results on the baryon cycle in low mass galaxies and discuss where we find (dis)agreement between real galaxies and predictions from state-of-art cosmological simulations. \nEvent flyer available here
URL:https://uwm.edu/physics/event/physics-colloquium-to-be-announced-2019-11-15/
LOCATION:Lapham 160\, 3209 N. Maryland Ave.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
GEO:43.0757204;-87.8840564
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Lapham 160 3209 N. Maryland Ave. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=3209 N. Maryland Ave.:geo:-87.8840564,43.0757204
END:VEVENT
END:VCALENDAR