BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Physics & Astronomy - ECPv6.18.0//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:20160313T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20161106T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20170312T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20171105T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20180311T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20181104T070000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20171006T153000
DTEND;TZID=America/Chicago:20171006T163000
DTSTAMP:20170922T153327Z
CREATED:20170918T165255Z
LAST-MODIFIED:20170922T153327Z
UID:10384493-1507303800-1507307400@uwm.edu
SUMMARY:Physics Colloquium: Martin Centurion
DESCRIPTION:“Atomic Scale Imaging of Molecular Dynamics”\nMartin Centurion\, University of Nebraska-Lincoln Department of Physics\n \nUnderstanding and controlling conversion of light into mechanical and chemical energy at the molecular level can have an impact across many fields\, from biology to solar energy conversion and storage.  These reactions often take place on the femtosecond time scale\, and the motion of atoms is on the sub-Angstrom scale.  While spectroscopic methods have been successful at following the dynamics of these reactions and establishing time scales\, they lack the spatial resolution to map the structural dynamics. U sing ultrafast gas electron diffraction\, we are now able to image photo-induced structural dynamics in isolated molecules with sub-200 fs resolution. We have captured the rotational motion of impulsively aligned Nitrogen molecules\, and observed a coherent vibrational wavepacket in Iodine molecules. We are now moving from these initial proof-of-principle experiments and working on more complex reactions where we have captured bond-breaking and the ensuing structural rearrangements of the molecule.
URL:https://uwm.edu/physics/event/physics-colloquium-speaker-to-be-announced-2017-10-06/
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;TZID=America/Chicago:20171013T153000
DTEND;TZID=America/Chicago:20171013T163000
DTSTAMP:20171011T165642Z
CREATED:20170918T165257Z
LAST-MODIFIED:20171011T165642Z
UID:10384495-1507908600-1507912200@uwm.edu
SUMMARY:Physics Colloquium: Keith Vanderlinde
DESCRIPTION:“Cosmology\, Cell Phones & Video Games: Mapping Dark Energy with CHIME”\nKeith Vanderlinde\, University of Toronto\n \nAmong the great surprises of modern cosmology was the discovery of Dark Energy\, which dominates the energy budget of the Universe and is driving the acceleration of its expansion rate. Decyphering its properties and nature will require novel measurements spanning vast swaths of the observable Universe.  In this talk\, I will introduce the Canadian Hydrogen Intensity Mapping Experiment (CHIME)\, an ambitious project to study Dark Energy by tracing out 4 billion years of cosmic history\, using a purpose-built radio telescope at the Dominion Radio Astrophysical Observatory (DRAO) in B.C.’s Okanagan Valley. \nHydrogen Intensity (HI) mapping uses redshifted 21cm emission from neutral hydrogen as a 3D tracer of Large Scale Structure (LSS) in the Universe.  Imprinted in the LSS is a remnant of acoustic waves which propagated through the primordial plasma of the nascent cosmos.  This “Baryon Acoustic Oscillation” (BAO) feature\, which appears as a spatial correlation of LSS\, can be used as a standard ruler to trace the expansion history of the Universe\, thereby allowing us to constrain the Dark Energy equation of state. \nCHIME is a transit interferometer with no moving parts\, which uses a massive computing backend to image the radio sky from 400-800MHz\, corresponding to 21cm radiation emanating from a redshift range of 0.8 < z < 2.5.  Earth rotation sweeps its field of view across the sky\, resulting in complete daily coverage of the northern celestial hemisphere and an unprecedented survey sensitivity.  I will discuss the motivation\, design\, and progress on CHIME and its reduced-scale Pathfinder\, as well as a pair of extensions which will probe the high-cadence time-domain radio sky\, monitoring radio pulsars and exploring a more recent mystery in radio astronomy\, the possibly-cosmological Fast Radio Bursts.
URL:https://uwm.edu/physics/event/physics-colloquium-speaker-to-be-announced-2017-10-13/
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:20171020T153000
DTEND;TZID=America/Chicago:20171020T163000
DTSTAMP:20171011T165849Z
CREATED:20170912T170401Z
LAST-MODIFIED:20171011T165849Z
UID:10383474-1508513400-1508517000@uwm.edu
SUMMARY:Physics Colloquium: Christopher Jarzynski
DESCRIPTION:“Scaling Down the Laws of Thermodynamics”\nChristopher Jarzynski\, University of Maryland – College Park \nThermodynamics provides a robust conceptual framework and set of laws that govern the exchange of energy and matter.  Although these laws were originally articulated for macroscopic objects\, it is hard to deny that nanoscale systems\, as well\, often exhibit “thermodynamic-like” behavior.  To what extent can the venerable laws of thermodynamics be scaled down to apply to individual microscopic systems\, and what new features emerge at the nanoscale?   \nI will review recent progress toward answering these questions\, with a focus on the second law of thermodynamics.  In particular\, I will argue that the inequalities ordinarily used to express the second law can be replaced by stronger equalities\, known as fluctuation relations\, which relate equilibrium properties to far-from-equilibrium fluctuations.  These results have led to new tools for the analysis of non-equilibrium experiments and simulations\, and they have refined our understanding of irreversibility and the second law.
URL:https://uwm.edu/physics/event/physics-colloquium-christopher-jarzynski/
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:20171027T153000
DTEND;TZID=America/Chicago:20171027T163000
DTSTAMP:20171017T154829Z
CREATED:20170918T165259Z
LAST-MODIFIED:20171017T154829Z
UID:10384497-1509118200-1509121800@uwm.edu
SUMMARY:Physics Colloquium: Daniel Agterberg
DESCRIPTION:“Topologically Protected Fermi Surfaces”\nDaniel Agterberg\, UW-Milawukee Department of Physics \nThe recent rapid development in understanding quantum materials has been shaped by the concept of topological stability: topology ensures robustness of physical properties even when the underlying interactions change substantially.  This has led to a deep understanding of the quantum hall effect\, the discovery and creation of topological insulators\, the understanding of equatorial surface waves on the earth\, the inevitability of Weyl fermions in quantum materials\, and the observation of Majorana fermions\, useful for quantum computing\, in superconductors.   \nIn this talk\, after an extensive introduction to these ideas\, I will present our recent results on the discovery of ubiquitous topologically protected Fermi surfaces in superconductors.
URL:https://uwm.edu/physics/event/physics-colloquium-speaker-to-be-announced-2017-10-27/
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