Events at Physics

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Events on Friday, April 1st, 2022

Wisconsin Quantum Institute
HQAN Quantum Research Colloquium
Time: 9:00 am - 10:00 am
Place: 4274 Chamberlin
Speaker: Elizabeth Goldschmidt (UIUC), Edgar Solomonik (UIUC)
Abstract: Join us for updates on the latest research from the NSF Quantum Leap Challenge Institute HQAN. Coffee and pastries will be provided.
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Theory Seminar (High Energy/Cosmology)
The Festina Lente Bound
Time: 1:00 pm
Place: Chamberlin 5280
Speaker: Thomas Van Riet, Leuven University
Abstract: The Festina Lente proposal bounds masses of charged particles in terms of the Hubble scale and the Planck scale. This bound is supposed to be a Swampland bound and is required for successful UV completion of an EFT. I will explain how this bound is motivated from semi-classical black hole physics, I briefly sketch how it can constrain both bottom-up phenomenology and string phenomenology.
Host: George Wojcik
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Physics Department Colloquium
Exploring anyons and black holes-like dynamics in flatland
Time: 3:30 pm
Place: 2103 Chamberlin Hall
Speaker: Smitha Vishveshwara, UIUC
Abstract: The world and the Universe we live in are composed of fermions and bosons. The quantum statistics of these particles overwhelmingly governs what we see around us. But one could wonder, can other kinds of quantum particles exist? I will begin this colloquium with an introduction of quantum statistics and the fascinating possible existence of anyons, particles which obey 'fractional' statistics. The quantum Hall system forms a marvelous two-dimensional realm for hosting many rich phenomena, including fractional statistics. I will describe how anyons can emerge in this setting, how they could be detected borrowing from beam-splitter and other principles used to detect bosons and fermions, and how recent landmark experiments did perform such detection. I will also illustrate how the same setting can probe dynamics akin to that found in the astrophysical realm of black holes. Specifically, point-contact geometries can exhibit phenomena parallel to Hawking-Unruh radiation and black hole quasinormal modes associated with ringdowns in gravitational wave detection.
Host: Alex Levchenko
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