Monday, April 2
4:00 pm - 5:00 pm	Algebra and Geometry Seminar/LA Joint Topology Seminar East Bridge 201 (Richard P. Feynman Lecture Hall) The structure of higher genus Gromov-Witten invariants of quintic 3-fold Yongbin Ruan, Department of Mathematics, University of Michigan,
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 Searching for Ultralight Particles with Black Holes and Gravitational Waves Masha Baryakhtar, Perimeter Institute,
5:00 pm - 6:00 pm	Joint LA Topology Seminar East Bridge 201 (Richard P. Feynman Lecture Hall) Symplectic geometry as topology of odd sphere bundles Li-Sheng Tseng, Department of Mathematics, UC Irvine,
5:00 pm - 6:00 pm	Moon Diver Mission Concept Guggenheim 133 (Lees-Kubota Lecture Hall)

Tuesday, April 3
4:00 pm - 5:00 pm	Chemical Physics Seminar Noyes 147 (J. Holmes Sturdivant Lecture Hall) Multireference Theories for Ground and Excited Electronic States Based on the Similarity Renormalization Group Francesco Evangelista, Assistant Professor, Department of Chemistry, Emory University,

Wednesday, April 4
3:00 pm - 4:30 pm	Reading Seminar on Deligne's Weil II Paper Building 15, Room 104 Overview and a review of étale cohomology Daxin Xu, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium Surprising Impacts of Gravity Waves Jim Fuller, Caltech,

Thursday, April 5
4:00 pm - 5:00 pm	Number Theory Seminar Building 15, Room 104 Some calculations with higher pro-p-Iwahori cohomology Karol Koziol, Department of Mathematics, University of Toronto,
4:00 pm - 5:00 pm	Physics Research Conference East Bridge 201 (Richard P. Feynman Lecture Hall) 19th Lauritsen Memorial Lecture: The Dawn of Gravitational-Wave Astrophysics Vicky Kalogera, Daniel I. Linzer Distinguished University Professor, Department of Physics and Astronomy, Northwestern University,

Friday, April 6
11:00 am - 12:00 pm	High Energy Theory Seminar Lauritsen 469 Generalized holographic entanglement of purification Ning Bao, UC Berkeley,
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar East Bridge 114 Toward realizing a time-reversal-invariant topological superconductor Arbel Haim, Sherman Fairchild Postdoctoral Scholar in Theoretical Physics,
3:00 pm - 5:00 pm	The Life and Science of Jerry Pine Athenaeum

Monday, April 9
1:00 pm - 2:00 pm	Logic Seminar Building 15, Room 131 Polish groupoids and continuous logic Ronnie Chen, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 Search for a Higgs boson produced via gluon fusion and decaying to bb̄ Caterina Vernieri, Fermilab,
4:00 pm - 5:00 pm	Algebra and Geometry Seminar Building 15, Room 104 Curved complexes, Khovanov-Rozans​ky homology, and Hilbert schemes Matthew Hogancamp, Department of Mathematics, USC,

Wednesday, April 11
12:30 pm - 1:30 pm	High Energy Physics Seminar Lauritsen 469 Observation of the Higgs Boson in its Decay to Tau Leptons at CMS Isobel Ojalvo, Princeton University,
2:30 pm - 3:30 pm	IQIM Postdoctoral and Graduate Student Seminar Lauritsen 469 Reconfigurable single-atom array for Rydberg atom quantum simulation Hyosub Kim, Department of Physics, KAIST, South Korea,
3:00 pm - 4:30 pm	Reading Seminar on Deligne's Weil II Paper Building 15, Room 104 Adic Formalism Tamir Hemo, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium The Dawn of 21cm Cosmology with EDGES Judd Bowman, Arizona State University,
8:00 pm - 9:30 pm	Victoria J. Orphan - "Microbial Life Support: The Invisible Living Networks That Shape Our Oceans" Beckman Auditorium

Thursday, April 12
10:00 am - 10:00 am	Feynman 100 Ticketing Begins
4:00 pm - 5:00 pm	Physics Research Conference East Bridge 201 (Richard P. Feynman Lecture Hall) Searching for New Particles and Forces with Polar Molecules Nicholas R. (Nick) Hutzler, Assistant Professor of Physics, Caltech,

Friday, April 13
11:00 am - 12:00 pm	High Energy Theory Seminar Lauritsen 469 Perturbative Approaches for QED3 Lorenzo Di Pietro, Perimeter Institute,
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar East Bridge 114 Solid-state hybrid quantum systems Alp Sipahigil, IQIM Postdoctoral Scholar, Painter Group,
3:00 pm - 5:00 pm	Geometry and Topology Seminar Building 15, Room 104 Convex hulls of quasicircles in hyperbolic and anti-de Sitter space Sara Maloni, Department of Mathematics, University of Virginia,
4:00 pm - 5:00 pm	Caltech/UCLA Joint Analysis Seminar Distance graphs in sets of positive density Akos Magyar, Department of Mathematics, University of Georgia,
5:00 pm - 6:00 pm	Caltech/UCLA Joint Analysis Seminar On Generalized Convexity of Power Functions Oliver Dragičević, Department of Mathematics, University of Ljubljana,

Monday, April 16
3:00 pm - 5:00 pm	Geometry and Topology Seminar Building 15, Room 131 Geometric Recursion Jørgen Ellegaard Andersen, Department of Mathematics - Centre for Quantum Geometry of Moduli Spaces, Aarhus University,
4:00 pm - 5:00 pm	Algebra and Geometry Seminar Building 15, Room 104 Positivity of tangent bundles Wenhao Ou, Department of Mathematics, UCLA,
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 Deep Learning and the Bayesian Connection Harrison Prosper, Florida State University,

Tuesday, April 17
3:00 pm - 4:00 pm	IQI Weekly Seminar Annenberg 107 "Quantum Supremacy" and the Complexity of Random Circuit Sampling Bill Fefferman, University of California, Berkeley,
4:00 pm - 5:00 pm	Applied Physics Seminar Spalding Laboratory 106 (Hartley Memorial Seminar Room) Quantum Correlation Engineering for Next-Generation Nanophotonic Devices Cristian Cortes, PhD, Electrical and Computer Engineering, Purdue University,

Wednesday, April 18
12:00 pm - 1:00 pm	IQIM Postdoctoral and Graduate Student Seminar West Bridge 265 Topological Quantum Computing with and without Majoranas Daniel Litinski, PhD Candidate, von Oppen Group, Freie University Berlin,
3:00 pm - 4:30 pm	Arithmetic Geometry Learning Seminar Building 15, Room 104 Weil Sheaves Jize Yu, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium "Mass Migration: a Galactic, not just an Earthly Phenomenon" Hans Walter Rix, MPIA,

Thursday, April 19
4:00 pm - 5:00 pm	Number Theory Seminar Building 15, Room 104 Breuil-Mezard cycles Brandon Levin, Department of Mathematics, University of Arizona ,
4:00 pm - 5:00 pm	Physics Research Conference East Bridge 201 (Richard P. Feynman Lecture Hall) A cargo-sorting DNA robot Lulu Qian, Assistant Professor of Bioengineering, Caltech,
4:00 pm - 5:00 pm	Regenerative Medicine Special Seminar Building 15, Room 131 Recent progress on the Hadwiger-Nelson problem Forte Shinko, Department of Mathematics, Caltech,

Friday, April 20
11:00 am - 12:00 pm	High Energy Theory Seminar Lauritsen 469 Entropy production via an inflow mechanism Mukund Rangamani, UC Davis,
12:00 pm - 1:00 pm	Applied Physics Seminar Watson 104 The Best Reciprocal Resonators Make the Best Nonreciprocal Systems Sunil Bhave, Associate Professor, School of Electrical and Computer Engineering, Purdue University,
2:00 pm - 3:00 pm	TAPIR Seminar Cahill 370 Physics of Hot Gas in Galaxy Clusters on Macro and Micro Scales Irina Zhuravleva, Phys Sci Res Assoc, Kavli Institute for Particle Astrophysics and Cosmology, Stanford University,
3:00 pm - 5:00 pm	Geometry and Topology Seminar Building 15, Room 104 Convex cocompact actions in real projective geometry Jeffrey Danciger, Mathematics Department, University of Texas, Austin ,
8:00 pm - 10:00 pm	Stargazing Lecture Cahill, Hameetman Auditorium On the Road to a Billion Planets Jessie Christiansen, Staff Scientist, IPAC, Caltech,

Monday, April 23
4:00 pm - 5:00 pm	Joint LA Topology Seminar Distance one lens space fillings and band surgery Allison Moore, Department of Mathematics, UC Davis,
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 Searching for dark matter with the XENON1T experiment Laura Baudis, University of Zurich,
5:00 pm - 6:00 pm	Joint LA Topology Seminar Seiberg-Witten invariants of 4-dimensional homology circles Danny Ruberman, Department of Mathematics, Brandeis University,

Tuesday, April 24
4:00 pm - 5:00 pm	Mathematics Colloquium East Bridge 201 (Richard P. Feynman Lecture Hall) Moore-Tachikawa 2d TQFTs whose values are holomorphic symplectic varieties Hiraku Nakajima, Department of Mathematics, Kyoto University,
4:00 pm - 5:00 pm	Gravitational-Wave Research Seminar Cahill, Hameetman Auditorium Measuring the Cosmic Microwave Background Polarization with the South Pole Telescope and Future Instruments Abby Crites, Caltech,

Wednesday, April 25
2:00 pm - 3:00 pm	Logic Seminar Building 15, Room 131 Co-induction and invariant random subgroups Alekos Kechris, Department of Mathematics, Caltech,
3:00 pm - 4:00 pm	Analysis Seminar Building 15, Room 131 TBA Ioan Bejenaru, Department of Mathematics, UC San Diego,
3:00 pm - 4:30 pm	Arithmetic Geometry Learning Seminar Building 15, Room 104 Weights Daxin Xu, Department of Mathematics, Caltech,
4:00 pm - 5:00 pm	Astronomy Colloquium Cahill, Hameetman Auditorium Imaging All the Sky All the Time in Search of Radio Exoplanets Gregg Hallinan, Caltech,
8:00 pm - 9:30 pm	Marina Agranov - "Negotiations and Group Decisions: Passing Bills with Backroom Deals" Beckman Auditorium

Thursday, April 26
4:00 pm - 5:00 pm	Physics Research Conference East Bridge 201 (Richard P. Feynman Lecture Hall) 20th Lauritsen Memorial Lecture: The Radioactive Glow of Freshly-Synthesized Heavy Nuclei from a Neutron Star Collision Brian Metzger, Associate Professor, Department of Physics, Columbia University,

Friday, April 27
11:00 am - 12:00 pm	High Energy Theory Seminar Lauritsen 469 Tinkertoys for E8 Jacques Distler, UT Austin,
12:00 pm - 1:00 pm	Undergraduate Math Club Seminar Uniformization of Complex Hyperbolic Curves and Real Hyperbolic 3--manifolds Tynan Ochse, Department of Mathematics, Caltech,
2:00 pm - 3:00 pm	TAPIR Seminar Cahill 370 Choosing the start time of binary black hole ringdown Maria (Masha) Okounkova, Graduate Student, TAPIR, Caltech,
3:00 pm - 5:00 pm	Geometry and Topology Seminar Building 15, Room 104 Legendrian satellite knots, DGA representations, and the colored HOMFLY-PT polynomial Caitlin Leverson, School of Mathematics, Georgia Institute of Technology,
4:00 pm - 5:00 pm	Caltech/UCLA Joint Analysis Seminar Heinävarra's Proof of the Dobsch-Donoghue Theorem Barry Simon, Department of Mathematics, Caltech,
5:00 pm - 6:00 pm	Caltech/UCLA Joint Analysis Seminar Leibniz-type rules associated to bilinear pseudodifferential operators Virginia Naibo, Department of Mathematics, Kansas State University,

Monday, April 30
4:00 pm - 5:00 pm	High Energy Physics Seminar Lauritsen 469 GeV-Mass Thermal WIMPs: Not Even Slightly Dead Rebecca Leane, MIT Center for Theoretical Physics,
4:00 pm - 5:00 pm	Algebra and Geometry Seminar Building 15, Room 104 Finite-dimensio​nal graded algebras with triangular decomposition Ulrich Thiel, School of Mathematics and Statistics, University of Sydney,