Monday, April 1
4:00 pm - 5:00 pm	Algebra and Geometry Seminar Linde Hall 387 The coherent Satake category and Wilson-‘t Hooft operators Harold Williams, Center for Quantum Mathematics and Physics, UC Davis,
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 Unlocking Neutron Stars as Sensitive Probes of Dark Matter Tim Linden, Ohio State University,

Wednesday, April 3
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium Evolved Planetary Systems Around White Dwarfs Boris Gaensicke, University of Warwick,
8:00 pm - 9:30 pm	Azita Emami - Tiny Chips for Brain-Body-Machine Interfaces Beckman Auditorium

Thursday, April 4
12:30 pm - 1:30 pm	INQNET Seminar Lauritsen 469 Towards real world quantum networks Raju Valivarthi, ICFO - The Institute of Photonic Sciences, Barcelona,
3:00 pm - 4:00 pm	Logic Seminar Linde Hall 255 Weak containment, co-induction and invariant random subgroups Alexander Kechris, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Physics Research Conference East Bridge 201 (Richard P. Feynman Lecture Hall) Dark Matter direct detection at a crossroads Ranny Budnik, Senior Scientist, Weizmann Institute,
4:00 pm - 5:00 pm	Number Theory Seminar Linde Hall 387 Koszul duality for Iwasawa algebras modulo $p$ Claus M. Sorensen, Department of Mathematics, University of California, San Diego,
5:15 pm - 7:15 pm	PMA TecherTalk Linde Hall 310

Friday, April 5
11:00 am - 12:00 pm	High Energy Theory Seminar Lauritsen 469 Entanglement as a connection for holographic spacetimes Lampros Lamprou, MIT,
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar East Bridge 114 "Quantum Nanophotonics with Ytterbium in Yttrium Orthovanadate" Jon Kindem, Postdoctoral Scholar, Faraon Group,
12:00 pm - 1:00 pm	Math Graduate Student Seminar Linde Hall 255 Path counting and rank gaps in differential posets Praveen Venkataramana, Department of Mathematics, Caltech,
3:00 pm - 5:00 pm	Geometry and Topology Seminar Linde Hall 187 Homology directions and veering triangulations Michael Landry, Mathematics Department, Yale University,
4:30 pm - 5:20 pm	Caltech/UCLA Joint Analysis Seminar Linde Hall 310 Polynomial Roth theorems in Salem sets Shaoming Guo, Department of Mathematics, University of Wisconsin Madison,
5:30 pm - 6:20 pm	Caltech/UCLA Joint Analysis Seminar Linde Hall 310 TBA Irina Holmes, Department of Mathematics, Michigan State University,

Saturday, April 6
9:30 am - 5:00 pm	N+10th Southern California Topology Colloquium Linde Hall 310

Monday, April 8
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 Primordial black holes as dark matter Alexander Kusenko, UCLA & Kavli IPMU,

Tuesday, April 9
3:00 pm - 4:00 pm	KNI Distinguished Seminar - Special Event with Condensed Matter Physics Noyes 153 (J. Holmes Sturdivant Lecture Hall) Making matter from light: Mott Insulators and Topological Fluids Jonathan Simon, Associate Professor of Physics & The James Franck Institute, and IME Fellow, University of Chicago,
4:00 pm - 5:00 pm	Chemical Physics Seminar Noyes 147 (J. Holmes Sturdivant Lecture Hall) Coherent Electron Dynamics in Inter-dimensional Metals: From Atomically Precise Clusters to Plasmonic Transducers Kenneth L. Knappenberger, Jr., Professor of Chemistry, Department of Chemistry, Pennsylvania State University,

Wednesday, April 10
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium The Discovery of Pulsars - A Graduate Student's Story Jocelyn Bell Burnell, University of Oxford,
4:00 pm - 5:00 pm	Joint Algebra and Geometry/Geometry and Topology Seminar Linde Hall 387 Cohomology of the space of polynomial morphisms on A^1 with prescribed ramifications Oishee Banerjee, Department of Mathematics, University of Chicago,
4:00 pm - 5:00 pm	Homotopy Type Theory Learning Seminar Linde Hall 187 Organizational Meeting

Thursday, April 11
3:00 pm - 4:00 pm	Logic Seminar Linde Hall 255 Bernoulli disjointness Todor Tsankov, Institut de Mathématiques de Jussieu–PRG, Université Paris Diderot,
4:00 pm - 5:00 pm	Physics Research Conference East Bridge 201 (Richard P. Feynman Lecture Hall) Grad Students' Choice: Topological order and topological excitation Xiao-Gang Wen, Professor of Physics, MIT,

Friday, April 12
11:00 am - 12:00 pm	High Energy Theory Seminar Lauritsen 469 Evaporating Eternal Black Holes Ahmed Ahlmeiri, IAS,
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar East Bridge 201 (Richard P. Feynman Lecture Hall) Emergent higher symmetry in topological phases of matter Xiao-Gang Wen, Cecil and Ida Green Professor of Physics, Massachusetts Institute of Technology,
12:00 pm - 1:00 pm	Special Seminar in CMS Annenberg 105 Imaging a Black Hole with the Event Horizon Telescope Katherine (Katie) Bouman, Visiting Associate, Computing and Mathematical Sciences, Caltech,
1:00 pm - 2:00 pm	High Energy Theory Seminar Lauritsen 469 Higher Spin Theories, Swampland and W-Supergravity Dieter Luest, MPI, Munich and Ludwig-Maximillians Univ,
2:00 pm - 3:00 pm	TAPIR Seminar Cahill 370 Understanding blazar jet microphysics through their radio variability Ioannis Liodakis, Postdoctoral Scholar, Department of Physics, Stanford University,
3:00 pm - 5:00 pm	Geometry and Topology Seminar Linde Hall 187 Dynamical and cohomological obstruction to extending group actions Sam Nariman, Department of Mathematics, Northwestern University,
3:00 pm - 4:00 pm	Analysis Seminar Linde Hall 255 A boundedness criterion for bilinear Fourier multipliers Lenka Slavikova, Mathematics Department, University of Missouri,
8:00 pm - 10:00 pm	Stargazing Lecture Cahill, Hameetman Auditorium NASA's Spitzer Space Telescope: Revealing the Invisible Marja Seidel, Staff Scientist, IPAC, Caltech,

Monday, April 15
4:00 pm - 4:50 pm	Caltech/USC/UCLA Joint Topology Seminar Bridge trisections and the Thom conjecture Peter Lambert-Cole, School of Mathematics, Georgia Institute of Technology,
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 A new semiclassical picture of vacuum decay Matthew Johnson, York University & Perimeter Institute,
5:00 pm - 5:50 pm	Caltech/USC/UCLA Joint Topology Seminar Classifying contact structures on hyperbolic 3-manifolds James Conway, Department of Mathematics, UC Berkeley,

Tuesday, April 16
3:00 pm - 4:00 pm	IQI Weekly Seminar Annenberg 107 Entropy decays for 1D quantum Gibbs samplers Angela Capel Cuevas, ICMAT,
4:00 pm - 5:00 pm	Canceled-Chemical Physics Seminar Noyes 147 (J. Holmes Sturdivant Lecture Hall) David Reichman, Centennial Professor of Chemistry, Department of Chemistry, Columbia University,
4:00 pm - 5:00 pm	Mathematics Colloquium Linde Hall 310 Shimura varieties, Galois representations, and torsion classes Ana Caraiani, Department of Mathematics, Imperial College,

Wednesday, April 17
2:30 pm - 3:30 pm	Geometry and Topology Seminar Linde Hall 187 Dehn surgery and SU(2) representations Steven Sivek, Department of Mathematics, Imperial College London,
4:00 pm - 5:00 pm	Homotopy Type Theory Learning Seminar Linde Hall 187
5:00 pm - 6:00 pm	Lecture: Stimulating a Culture of Innovation at The Aerospace Corporation Guggenheim 133 (Lees-Kubota Lecture Hall)

Thursday, April 18
4:00 pm - 6:00 pm	Number Theory Seminar Linde Hall 387 On the geometry of the Hodge-Tate period morphism Ana Caraiani, Department of Mathematics, Imperial College London,
4:00 pm - 5:00 pm	Physics Research Conference East Bridge 201 (Richard P. Feynman Lecture Hall) Building Single Molecules – reactions, collisions, and spectroscopy of two atoms Kang-Kuen Ni, Assistant Professor of Chemistry and Chemical Biology, Harvard University,

Friday, April 19
11:00 am - 12:00 pm	High Energy Theory Seminar Lauritsen 469 Asymptotic Symmetries and the Soft Photon Theorem in Arbitrary Dimension Temple He, Asymptotic Symmetries and the Soft Photon Theorem in Arbitrary Dimension, UC Davis,
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar East Bridge 114 Probing Topological Superconductivity in a Phase-Controlled Planar Josephson Junction Hechen Ren, IQIM Postdoctoral Scholar, Nadj-Perge Group,
12:00 pm - 1:00 pm	Math Graduate Student Seminar Linde Hall 255 Introduction to homological blocks Sunghyuk Park, Department of Mathematics, Caltech,
2:00 pm - 3:00 pm	TAPIR Seminar Cahill 370 CORRELATED WORLDLINE THEORY of QUANTUM GRAVITY P.C.E. Stamp, Professor - Condensed Matter Theory, Department of Physics and Astronomy, University of British Columbia and Caltech,
3:00 pm - 5:00 pm	Geometry and Topology Seminar Linde Hall 187 Strands algebras and Ozsváth-Szabó's Kauffman states functor Marco Marengon, Department of Mathematics, UCLA,
4:00 pm - 4:50 pm	Caltech/UCLA Joint Analysis Seminar Head and tail speeds of mean curvature flow with forcing Hongwei Gao, Department of Mathematics, UCLA,
5:00 pm - 5:50 pm	Caltech/UCLA Joint Analysis Seminar Weissler's conjecture on the Boolean cube Paata Ivanisvili, Department of Mathematics, UC Irvine,

Monday, April 22
4:30 pm - 5:30 pm	Caltech/USC/UCLA Joint Topology Seminar Factorization homology: sigma-models as state-sum TQFTs David Ayala, Department of Mathematical Sciences, Montana State University,
5:30 pm - 6:30 pm	Caltech/USC/UCLA Joint Topology Seminar Counting square-tiled surfaces with prescribed real and imaginary foliations Francisco Arana Herrera, Department of Mathematics, Stanford University,

Tuesday, April 23
3:00 pm - 4:00 pm	IQI Weekly Seminar Annenberg 107 The complexity of sampling from a weak quantum computer Saeed Mehraban, MIT,

Wednesday, April 24
1:30 pm - 2:30 pm	High Energy Theory Seminar Lauritsen 469 Conformally soft photons and gravitons Andrea Puhm, CPHT - Centre de Physique Theorique,
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium Three-Dimensional Supernova Explosion Simulations Adam Burrows, Department of Astrophysical Sciences, Princeton University,
8:00 pm - 9:30 pm	Tapio Schneider - Clouds and Climate Tipping Points Beckman Auditorium

Thursday, April 25
4:00 pm - 5:00 pm	Physics Research Conference East Bridge 201 (Richard P. Feynman Lecture Hall) Beyond Representation: Data to Improve the Situation of Women and Minorities in Physics and Astronomy Rachel Ivie, Director, Statistical Research Center (SRC), American Institute of Physics,

Friday, April 26
11:00 am - 12:00 pm	High Energy Theory Seminar Lauritsen 469 Supersymmetric Wilson Loops, Instantons, and Deformed W-algebras Nathan Haouzi, Simons Center for Geometry and Physics,
11:00 am - 12:00 pm	Applied Physics Seminar Spalding Laboratory 106 (Hartley Memorial Seminar Room) Identifying Phonon Coupling Effects in Strongly Anharmonic Functional Materials with Raman Crystallography Thomas M. Brenner, Postdoctoral Fellow, Dept. of Materials and Interfaces, Weizmann Institute of Science (Israel),
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar East Bridge 114 Increasing spin-photon interface efficiencies via a tunable Fabry-Perot microcavity Daniel Riedel, Postdoctoral Scholar in Applied Physics and Material Science, Faraon Group,
2:00 pm - 3:00 pm	TAPIR Seminar Cahill 370 The stellar local velocity distribution and its implications for dark matter Lina Necib, Sherman Fairchild Postdoctoral Scholar in Theoretical Physics, High Energy Physics, Caltech,
3:00 pm - 4:00 pm	Analysis Seminar Linde Hall 255 Homogenization of random quasiconformal mappings and random Delauney triangulations Oleg Ivrii, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Geometry and Topology Seminar Linde Hall 187 Construction of hypersurfaces with prescribed mean curvature Jonathan Zhu, Department of Mathematics, Princeton University,

Monday, April 29
4:00 pm - 4:50 pm	Caltech/USC/UCLA Joint Topology Seminar Linde Hall 310 Khovanov homology and the Fukaya category of the 3-punctured disc Claudius Zibrowius, Mathematics Department, University of British Columbia,
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 Non-Thermal Production of Bosonic Dark Matter Raymond Co, University of Michigan,
5:00 pm - 6:00 pm	Caltech/USC/UCLA Joint Topology Seminar Linde Hall 310 A spectral sequence from Khovanov homology to knot Floer homology Nathan Dowlin, Department of Mathematics, Dartmouth College,

Tuesday, April 30
4:00 pm - 5:00 pm	Chemical Physics Seminar Noyes 147 (J. Holmes Sturdivant Lecture Hall) Electric Excitations in Nanomaterials Timothy Berkelbach, Assistant Professor, Department of Chemistry, Columbia University and Research Scientist Center for Computational Quantium Physics at Flatiron Institute,