Friday, April 1
11:00 am - 12:00 pm	IQIM Postdoctoral and Graduate Student Seminar Online and In-Person Event A mathematical definition of the abelian group Q(X) := quantum cellular automata / finite depth quantum circuits and ancilla residing on a space X Michael Freedman, USCB/Microsoft,
11:00 am - 12:00 pm	High Energy Theory Seminar Online and In-Person Event A mathematical definition of the abelian group Q(X) := quantum cellular automata / finite depth quantum circuits and ancilla residing on a space X. Michael Freedman, USCB/Microsoft,
12:00 pm - 1:00 pm	Quantum Matter Seminar East Bridge 114 Searches for new physics with a multiplexed optical lattice clock Shimon Kolkowitz, Assistant Professor, University of Wisconsin-Madison,
2:00 pm - 3:00 pm	TAPIR Seminar Cahill 370 Agnostic Planetary Assessment using Epsilon Machines Stuart Bartlett, Research Staff, Division of Geological and Planetary Sciences, Caltech,

Monday, April 4
12:30 pm - 1:30 pm	Berkeley-Caltech-Stanford Joint Number Theory Seminar Online Event A positive proportion of integers are not the sum of two rational cubes Manjul Bhargava, Department of Mathematics, Princeton University,
1:00 pm - 2:00 pm	High Energy Physics Seminar Online and In-Person Event Persistent Spontaneous Symmetry Breaking at High Temperatures Eliezer Rabinovici, CERN, HU of Jerusalem,
4:00 pm - 5:00 pm	High Energy Physics Seminar Online Event Light Quarks at Large N Michael Dine, UC Santa Cruz,
4:00 pm - 5:00 pm	Astronomy Tea Talk Online Event Intermediate mass black holes everywhere? James Paynter, University of Melbourne,

Tuesday, April 5
4:00 pm - 5:00 pm	Chemical Physics Seminar Noyes 147 (J. Holmes Sturdivant Lecture Hall) Genome Organization through Phase Separation: Random yet Precise Bin Zhang, Assistant Professor of Chemistry, Associate Member of the Broad Institute, Pfizer-Laubach Career Development Professorship, Department of Chemistry, Massachussetts Institute of Technolocy,

Wednesday, April 6
12:00 pm - 1:00 pm	Logic Seminar Online Event Constructing Wadge classes and describing Wadge quasi-orders Raphaël Carroy, University of Turin,
4:00 pm - 5:00 pm	Astronomy Colloquium Online Event Precision Strong-Field Gravity Tests with the Double Pulsar Ingrid Stairs, Professor, Division of Physics and Astronomy, University of British Columbia,

Thursday, April 7
4:00 pm - 5:00 pm	LA Probability Forum Linde Hall 310 Multiplicative chaos of the Brownian loop soup Antoine Jego, MSRI, Berkeley,
4:00 pm - 5:00 pm	Physics Colloquium Online and In-Person Event Machine learning and knots Sergei Gukov, Caltech,
5:00 pm - 6:00 pm	LA Probability Forum Linde Hall 310 SLE, energy duality, and foliations by Weil-Petersson quasicircles Yilin Wang, MSRI, Berkeley,
6:00 pm - 7:00 pm	LA Probability Forum Linde Hall 310 TBA Mitia Duerinckx, Department of Mathematics, UCLA,

Friday, April 8
11:00 am - 12:00 pm	High Energy Theory Seminar Online and In-Person Event The S-matrix bootstrap in two and four dimensions: primal and dual problem Martin Kruczenski, Purdue University,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Linde Hall 187 Chromatic invariants of vector bundles on projective spaces Morgan Opie, Department of Mathematics, UCLA,
3:00 pm - 4:00 pm	Geometry and Topology Seminar Linde Hall 187 TBA Morgan Opie, Department of Mathematics, UCLA,
4:00 pm - 5:00 pm	Mathematics Colloquium Linde Hall 310 Motion and monodromy Nalini Joshi, School of Mathematics and Statistics, The University of Sydney,
7:00 pm - 9:00 pm	Stargazing Lecture Online Event Black Holes and Gravitational Waves: Was Einstein Right? Saul Teukolsky, Robinson Professor of Theoretical Astrophysics, Caltech,

Monday, April 11
12:30 pm - 1:30 pm	Berkeley-Caltech-Stanford Joint Number Theory Seminar Online Event Algebraic twists of automorphic L-functions Philippe Michel, EPFL,
4:00 pm - 5:00 pm	High Energy Physics Seminar Online Event The axion-photon coupling and grand unified theories Mario Reig, Oxford University,

Tuesday, April 12
2:00 pm - 3:00 pm	Caltech/UCLA/USC Joint Analysis Seminar Online and In-Person Event TBA Alex Iosevich, Department of Mathematics, University of Rochester,
3:00 pm - 4:00 pm	Caltech/UCLA/USC Joint Analysis Seminar Online and In-Person Event TBA TBA,

Wednesday, April 13
12:00 pm - 1:00 pm	Logic Seminar Online Event Extending the Reach of the Point-to-Set Principle Jack Lutz, Department of Mathematics, Iowa State University,
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium What to Know About GWs for Those in the Know Rana Adhikari, Professor of Physics, California Institute of Technology,
5:00 pm - 6:00 pm	Watson Lecture: The Rhetoric of Chance in Times of Pandemic Online and In-Person Event Jennifer A. Jahner, Professor of English, Division of the Humanities and Social Sciences, Caltech,

Thursday, April 14
4:00 pm - 5:00 pm	Physics Colloquium - CANCELED Online and In-Person Event Quantum Many-body theory in the Quantum Information era Matthew P.A. Fisher, UC Santa Barbara,

Friday, April 15
11:00 am - 12:00 pm	High Energy Theory Seminar Online and In-Person Event Semiclassical 3D gravity as an average of large-c CFT Scott Collier, Princeton University,
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar East Bridge 114 Deterministic Generation of 2D Photonic Cluster States by a Single Quantum Emitter Vinicius Ferreira, Graduate Student, Painter Group,
2:00 pm - 3:00 pm	TAPIR Seminar Cahill 370 Self-Force Waveforms with a Spinning Secondary Josh Mathews, Graduate Student, Maths Support Centre, University College Dublin,

Monday, April 18
9:30 am - 10:30 am	INQNET Seminar Online Event Thulium Doped Garnets for Quantum Repeaters and Optical Quantum Memory Jake Davidson, QuTech, Delft University of Technology,
12:00 pm - 1:00 pm	High Energy Physics Seminar Online Event Surprising and Dark Implications of a Supersymmetric Gravity Sector Clifford Burgess, Perimeter Institute and McMaster University,
12:30 pm - 1:30 pm	Berkeley-Caltech-Stanford Joint Number Theory Seminar Online Event A multiplicity formula of K-types Chen Wan, Department of Mathematics & Computer Science, Rutgers University,
4:00 pm - 5:00 pm	Astronomy Tea Talk Online Event Shaping Extrasolar Systems with Giant Planets Laetitia Rodet, Cornell University,
4:00 pm - 5:00 pm	Algebra and Geometry Seminar Online Event Galois action on the pro-algebraic fundamental group Alexander Petrov, Department of Mathematics, Harvard University,

Tuesday, April 19
2:30 pm - 3:30 pm	Caltech/UCLA/USC Joint Analysis Seminar Online and In-Person Event A small cap decoupling for the twisted cubic Hongki Jung, Department of Mathematics, Indiana University Bloomington,
3:30 pm - 4:30 pm	Caltech/UCLA/USC Joint Analysis Seminar Online and In-Person Event On the competition between advection and vortex stretching Jiajie Chen, Computing + Mathematical Sciences, Caltech,

Wednesday, April 20
12:00 pm - 1:00 pm	Logic Seminar Online Event Isomorphism of locally compact Polish metric structures Maciej Malicki, IMPAN,
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium Planets, Patterns, and the Origin of Life Lauren Weiss, Assistant Professor of Physics, University of Notre Dame,

Thursday, April 21
4:00 pm - 5:00 pm	Number Theory Seminar Linde Hall 387 Characterization and construction of the local Langlands correspondence for supercuspidal parameters Tasho Kaletha, Department of Mathematics, University of Michigan,

Friday, April 22
11:00 am - 12:00 pm	High Energy Theory Seminar Online and In-Person Event Interacting boundary gravitons Ruben Monten, UCLA,
2:00 pm - 3:00 pm	TAPIR Seminar Cahill 370 Binary evolution, gravitational-wave mergers and explosive transients in multiple-populations gas-enriched globular-clusters Mor Rozner, Azrieli Fellow Graduate Student, Physics Department, Technion,

Monday, April 25
12:30 pm - 1:30 pm	Berkeley-Caltech-Stanford Joint Number Theory Seminar Online Event Infinitely many primes of basic reduction for abelian varieties Elena Mantovan, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Astronomy Tea Talk Online Event Gas Flows in Massive Galaxies at Cosmic Noon with Integral Field Spectroscopy Andrey Vayner, Johns Hopkins University,
7:30 pm - 9:30 pm	Astronomy on Tap Online Event "First Galaxies" and "Magnetic Fields" Ethan Siegel, Senior Science Contributor, Forbes Magazine, Sam Ponnada, PhD Candidate, Department of Astronomy, Caltech,

Tuesday, April 26
4:00 pm - 5:00 pm	Cancelled Chemical Physics Seminar Noyes 147 (J. Holmes Sturdivant Lecture Hall) Amish Patel, Associate Professor of Chemical and Biomolecular Engineering, Department of Chemical and Biomolecular Engineering, University of Pennsylvania,

Wednesday, April 27
12:00 pm - 1:00 pm	Logic Seminar Online Event Revisiting the Erdős-Rado canonical partition theorem Lionel Nguyen Van Thé, Institut de Mathématiques de Marseille, Université d'Aix-Marseille,
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium Fifty-Five Years of Discoveries at the Galactic Center in the Infrared with Gerry Neugebauer and Many Others Eric Becklin, Professor Emeritus UCLA Physics and Astronomy/SOFIA Science Advisor, USRA,

Thursday, April 28
4:00 pm - 5:00 pm	Number Theory Seminar Linde Hall 387 A conjectural endoscopic classification via Galois representations Sug Woo Shin, Department of Mathematics, UC Berkeley,
4:00 pm - 5:00 pm	Physics Colloquium Online and In-Person Event Broken Symmetry Clues for Fundamental Physics Matthew Reece, Harvard University,

Friday, April 29
11:00 am - 12:00 pm	High Energy Theory Seminar Online and In-Person Event On the quantum information content of a Hawking pair Herman Verlinde, Princeton University,
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar East Bridge 114 Majorana modes in iron-based superconducting vortex Lingyuan Kong, AWS Quantum Postdoctoral Scholar, Nadj-Perge Group,
1:00 pm - 2:00 pm	High Energy Theory Seminar Online and In-Person Event Higgs, Coulomb, and Hall-Littlewood Kihong Lee, Korea Advanced Institute of Science and Technology (KAIST),
2:00 pm - 3:00 pm	TAPIR Seminar Online Event Dark matter core formation, ultra-diffuse galaxies, and MOND Jonathan Freundlich, Staff Researcher, Observatoire Astronomique de Strasbourg, Université de Strasbourg,