Monday, April 12
9:00 am - 10:00 am	High Energy Physics Seminar Online Event Enabling Searches for Long-lived Particles and Precision Timing at CMS Cristian Peña, Fermilab,
12:00 pm - 1:00 pm	Logic Seminar Online Event The Wadge hierarchy on Zariski topologies Riccardo Camerlo, Department of Mathematics, University of Genoa,

Wednesday, April 14
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event The NANOGrav 12.5-Year Data Set: Knocking at the Gravitational Wave Door Maura McLaughlin, Eberly Family Distinguished Professor, Department of Physics and Astronomy, West Virginia University,

Thursday, April 15
9:00 am - 9:55 am	Analysis Seminar Online Event On the stability of classical boundary layers Toan Nguyen, Mathematics Department, Pennsylvania State University,
4:00 pm - 5:00 pm	Physics Colloquium Online Event Active Topology Cristina Marchetti, UC Santa Barbara,
4:00 pm - 5:00 pm	Number Theory Seminar Online Event The distribution of closed geodesics on the modular surface Alexandre Perozim de Faveri, Department of Mathematics, Caltech,

Friday, April 16
11:00 am - 12:00 pm	High Energy Theory Seminar Online Event Dynamics of 1+1 Dimensional Gauge Theories and Exotic Symmetries Zohar Komargodski, Simons Center for Geometry and Physics,
11:00 am - 12:00 pm	IQIM Postdoctoral and Graduate Student Seminar Online Event Building a quantum computer with cat codes Fernando Brandão, Bren Professor of Theoretical Physics, Head of Quantum Algorithms AWS,
2:00 pm - 3:00 pm	TAPIR Seminar Online Event A hidden Markov model search for gravitational waves from twelve young supernova remnants Meg Millhouse, Postdoctoral Research Fellow, School of Physics, University of Melbourne,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Online Event Existence of static vacuum extensions Lan-Hsuan Huang, Department of Mathematics, University of Connecticut,
4:00 pm - 5:00 pm	Math Graduate Student Seminar Online Event Operator algebras and the emergence of spacetime Elliott Gesteau, Department of Mathematics, Caltech,
7:00 pm - 9:00 pm	Stargazing Lecture Online Event Endless Hunt for Black Holes Wenbin Lu, David and Ellen Lee Postdoctoral Scholar Research Associate, Department of Theoretical Astrophysics, Caltech,