February 2023 |
Monday | Tuesday | Wednesday | Thursday | Friday |
30 Andrei Gruzinov, Statistical Mechanics of Star Clusters? (12:30 PM - 1:30 PM) | 31 , Astro Journal Club (12:30 PM - 1:30 PM) Sasha Tchekhovskoy, Simulating Black Hole Feasts, Burps, Fireworks, and Gravitational Waves (2:00 PM - 3:15 PM) + Abstract: | 1 , HEP Journal Club (12:30 PM - 1:30 PM) Ibrahima Bah, Topological stars in gravity (2:00 PM - 3:00 PM) + Abstract: | 2 Kota Katsumi, Collective Excitations in Quantum Materials Probed by Light: The Higgs Mode in Superconductors (10:00 AM - 12:00 PM) + Abstract: Robert Cava, Working at the boundary where Solid State Chemistry, Mineralogy and Materials Science Meet Materials Physics (4:00 PM - 5:30 PM) + Abstract: | 3 |
6 Oren Slone, Dark sectors, kinetic theory, and astrophysical probes (12:30 PM - 1:30 PM) , Grad Pheno Journal Club (2:00 PM - 3:00 PM) | 7 , Astro Journal Club (12:30 PM - 1:30 PM) Eli Waxman, Strong NIR emission following a long duration GRB: Neutron Star merger or Dust sublimation? (2:00 PM - 3:15 PM) + Abstract: | 8 , HEP Journal Club (12:30 PM - 1:30 PM) Kim Berghaus, The Cosmology of Dark Energy Radiation (2:00 PM - 3:00 PM) + Abstract: | 9 , Equity & Inclusion Committee (12:30 PM - 2:00 PM) Eli Waxman, ULTRASAT: Revolutionizing Our Understanding of the Hot Transient Universe (4:00 PM - 5:30 PM) + Abstract: | 10 Zare (3:30 PM - 5:30 PM) |
13 Sultan Hassan, Bridging the Gap between Cosmic Dawn and Reionization favors Faint Galaxies-dominated Models (12:30 PM - 1:30 PM) | 14 , Astro Journal Club (12:30 PM - 1:30 PM) Lam Hui, Black hole perturbation theory: Love numbers and nonlinear ring-down (2:00 PM - 3:15 PM) + Abstract: | 15 , HEP Journal Club (12:30 PM - 1:30 PM) Alberto Nicolis, Cosmology as a weak gravitational field and the trans-Planckian problem (2:00 PM - 3:00 PM) + Abstract: | 16 , Equity & Inclusion Committee (12:30 PM - 2:00 PM) David Spergel, CMB as a Probe of Astrophysics and the Early Universe (4:00 PM - 5:15 PM) + Abstract: | 17 Aishwarya Kumar, Hybrid Quantum Science with Neutral Atoms in Superconducting Resonators (10:00 AM - 12:00 PM) + Abstract: Zare (3:30 PM - 5:30 PM) |
20 , President's Day - University Closed (12:30 PM - 1:30 PM) | 21 , Astro Journal Club (12:30 PM - 1:30 PM) Tomer Yavetz, Stream Fanning and Bifurcations: Observing Fundamental Dynamics in Stellar Stream Morphology (2:00 PM - 3:00 PM) + Abstract: | 22 , HEP Journal Club (12:30 PM - 1:30 PM) (2:00 PM - 3:15 PM) | 23 (10:30 AM - 11:30 AM) , Equity & Inclusion Committee (12:30 PM - 2:00 PM) Gil Refael, Floquet Engineering in the Era of Topological Physics and Quantum Coherent Devices (4:00 PM - 5:30 PM) + Abstract: | 24 Zare (3:30 PM - 5:30 PM) |
27 Xucheng Gan, Millicharged Relics Reveal Massless Dark Photons (12:30 PM - 1:30 PM) + Abstract: | 28 , Astro Journal Club (12:30 PM - 1:30 PM) , No Astro Seminar (2:00 PM - 3:15 PM) | 1 , HEP Journal Club (12:30 PM - 1:30 PM) Joaquin Turiaci, Black hole spin-statistics (2:00 PM - 3:00 PM) -- Abstract: Black holes are believed to be described by a quantum system with a large number of degrees of freedom given, in the classical limit, by the area of the event horizon. This was verified extensively in string theory using the index of the putative quantum system since, in the context of supersymmetric theories, it can be computed at weak coupling. In the first part of the talk I describe how to compute the index of the black hole quantum system from a gravitational path integral. This was puzzling for some time since periodic fermions seem to be singular at the event horizon. In the second part of the talk I describe work in progress that uses this insight to compute "(-1)^F" in non-supersymmetric theories, giving us a gravitational prediction to the number of fermionic vs bosonic black holes in a theory of quantum gravity. | 2 , Equity & Inclusion Committee (12:30 PM - 2:00 PM) Arvind Murugan, Learning without Neurons (4:00 PM - 5:30 PM) + Abstract: | 3 Zare (3:30 PM - 5:30 PM) |