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DTSTART;TZID=America/Chicago:20260911T153000
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DTSTAMP:20260731T151555Z
CREATED:20260731T151555Z
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SUMMARY:Physics Colloquium - Dr. Jean Creighton
DESCRIPTION:How to Give a Talk\nDr. Jean Creighton\nDirector of the UWM Manfred Olson Planetarium \nGiving an engaging talk takes more than just knowing your material.   \nIn this talk\, I’ll outline key steps for preparing and delivering a compelling presentation for a variety of audiences.  We’ll explore how to understand your listeners\, define the purpose of your talk\, clarify your message with visuals and explanations\, rehearse effectively\, engage your audience\, and market your talk to generate interest.  These strategies will help make your presentation more impactful and enjoyable for everyone involved.
URL:https://uwm.edu/physics/event/physics-colloquium-jean-creighton-2/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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DTSTART;TZID=America/Chicago:20260918T130000
DTEND;TZID=America/Chicago:20260918T140000
DTSTAMP:20260914T153723Z
CREATED:20260825T155049Z
LAST-MODIFIED:20260914T153723Z
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SUMMARY:CGCA Seminar - Daniel Palumbo
DESCRIPTION:Spin Signatures in Horizon-Resolved Images of LLAGN\nDr. Daniel Palumbo\, Smithsonian Astrophysical Observatory\nHarvard University \nWith the advent of the Event Horizon Telescope (EHT)\, near-horizon black hole imaging with sub-mm very-long-baseline interferometry (VLBI) is now routine for the two sources for which terrestrial VLBI is sufficient to resolve the black hole shadow: Messier 87* and Sagittarius A*. Since the first images of M87*\, the theoretical analysis of these images has advanced a broad class of black hole spin tracers in horizon-resolving observations\, all of which have complex interplay with the astrophysical conditions near the horizon. Meanwhile\, space VLBI mission concepts such as the Black Hole Explorer aim to drastically improve the angular resolution available via sub-mm VLBI\, resolving out the primary accretion disk image to isolate the strongly lensed “photon ring\,” which more robustly exposes black hole mass\, spin\, and viewing inclination to distant observers. In this talk\, I will detail many of the spin signatures in both of these angular resolution regimes\, and how they work together to build a “robustness ladder” for spin measurement with which the spins of many more low-luminosity AGN will soon become accessible as sub-mm VLBI sensitivity\, frequency coverage\, angular resolution improves. The resulting local “spin census” will help fill in missing pieces of the history of accretion and merging in the broader AGN population.
URL:https://uwm.edu/physics/event/cgca-seminar-daniel-palumbo/
LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:CGCA Seminars
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DTSTART;TZID=America/Chicago:20260918T153000
DTEND;TZID=America/Chicago:20260918T170000
DTSTAMP:20260917T174124Z
CREATED:20260825T153241Z
LAST-MODIFIED:20260917T174124Z
UID:10435398-1789745400-1789750800@uwm.edu
SUMMARY:CANCELLED: Physics Colloquium - Chavdar Slavov
DESCRIPTION:This colloquium has been cancelled.\nLight-driven Molecular Transformations Captured by Ultrafast Spectroscopy\nDr. Chavdar Slavov\, Assistant Professor\, Department of Chemistry\nUniversity of South Florida \nFemtosecond time-resolved spectroscopy reveals the excited-state pathways and chromophore dynamics that transform light absorption into photochemical and biological function.  Using phytochromes\, I will illustrate how the protein environment controls chromophore isomerization\, which in turn initiates structural changes that regulate biological signaling.  Examples of synthetic photoswitches will further demonstrate how molecular motions and interactions direct competing excited-state pathways toward productive or nonproductive photochemistry.  Finally\, I will introduce photopharmacology and show how artificial photoswitches can reversibly control biologically active molecules with light.  Together\, these studies demonstrate how understanding excited-state dynamics bridges photochemistry and biophysics and informs the design of functional photoresponsive systems.
URL:https://uwm.edu/physics/event/physics-colloquium-chavdar-slavov/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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DTSTART;TZID=America/Chicago:20260925T153000
DTEND;TZID=America/Chicago:20260925T170000
DTSTAMP:20260904T125309Z
CREATED:20260825T153405Z
LAST-MODIFIED:20260904T125309Z
UID:10435399-1790350200-1790355600@uwm.edu
SUMMARY:Physics Colloquium - Daniel Agterberg
DESCRIPTION:Altermagnets:  A New Technologically Relevant Class of Quantum Magnets\nDaniel Agterberg\nProfessor\, University of Wisconsin-Milwaukee \nMagnetism underpins much of our current information technology.  It also derives purely from quantum mechanics.  Traditionally\, discussion emphasizes two classes of magnets: usual ferromagnets\, which underly data storage devices\, and antiferromagnets\, in which magnetic moments adopt an up-down structural motif.  Recently\, a new class of magnets\, altermagnets\, has generated tremendous interest.  This class mixes properties of ferromagnets and antiferromagnets in a way that is promising for future applications.    \nIn this talk\, after introducing and discussing the quantum mechanical origins of traditional classes of magnetism\, I will turn to altermagnetism to highlight our current understanding of these materials and discuss how this understanding is providing a new lens for future research in quantum magnetism.\n.
URL:https://uwm.edu/physics/event/physics-colloquium-daniel-agterberg/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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