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October 2025

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Monday, October 20th, 2025
8:15am – 12:30pm
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CANCELLED: KISS Short Course - Hybrid Space-Ground Observatories: Revolutionizing the Search for Earth-Like Exoplanets

Chen 100
4:00pm – 5:00pm
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High Energy Physics Seminar

Online and In-Person Event
Probing Ultra-heavy Particle Physics using Precision Cosmology
Soubhik Kumar, Tufts University,
4:00pm – 5:00pm
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Quantum Matter Seminar

East Bridge 114
Towards coarse-grained models of molecules
David Pekker, Associate Professor of Physics, Department of Physics, University of Pittsburgh,
Tuesday, October 21st, 2025
12:00pm – 1:00pm
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Math Graduate Student Seminar

Linde Hall 255
Percolation on transitive graphs
Minghao Pan, PhD Student, Department of Mathematics, Caltech,
2:00pm – 3:00pm
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Informal Chemical Physics Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Fast, Ultrasensitive, Label-Free Molecular Detection with Light
Judith Su, Craig M. Berge Faculty Fellow and an Associate Professor in Optical Sciences and Biomedical Engineering, Wyant College of Optical Sciences, University of Arizona,
4:00pm – 5:00pm
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Mathematics Colloquium

Linde Hall 310
Equivariant Birational Geometry
Yuri Tschinkel, Professor of Mathematics, Courant Institute of Mathematical Sciences, New York University,
Wednesday, October 22nd, 2025
11:00am – 12:00pm
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High Energy Theory Seminar

Online and In-Person Event
The Analytic Functional in the Numerical Conformal Bootstrap
Zechuan Zheng, Perimeter Institute,
12:00pm – 1:00pm
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Logic Seminar

Online Event
Generic group properties
Tamás Kátay, Hedrick Assistant Adjunct Professor, Department of Mathematics, UCLA,
12:15pm – 1:00pm
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Caltech/IPAC Lunch Seminar

IPAC 102 (Large Conference Room)
New Tools for Debris Disk Imaging: Keck/NIRC2-Pol and GRaTer-JAX GPU Models
Briley Lewis, UC Santa Barbara,
4:00pm – 5:00pm
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Astronomy Colloquium

Cahill, Hameetman Auditorium
The Missing Link: Planet Formation from Millions to Billions of Years
Meredith Hughes, Chair, Astronomy Department; Associate Professor of Astronomy, Wesleyan University,
4:30pm – 6:00pm
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CANCELLED: Revolutionizing Astrophysics: How Space and Ground Telescopes Can Work Together

Chen 100
7:30pm – 8:30pm
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Watson Lecture - Molecules, Mysteries, and the Matter of Existence, with Nick Hutzler

Beckman Auditorium
Nick Hutzler, assistant professor of physics,
Thursday, October 23rd, 2025
12:00pm – 1:00pm
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Applied Physics Seminar

Watson 104
Fast, Ultrasensitive, Label-Free Molecular Detection with FLOWER and Beyond
Judith Su, Associate Professor, Optical Sciences and Biomedical Engineering, University of Arizona,
2:30pm – 3:30pm
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Caltech/USC Joint Algebra and Geometry Seminar

Whittaker averaging and singular support
Jeremy Taylor, Hedrick Assistant Adjunct Professor, Department of Mathematics, University of California - Los Angeles,
4:00pm – 5:00pm
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Caltech/USC Joint Algebra and Geometry Seminar

Quantum cohomology of variations of GIT quotients and flips
Zhaoxing Gu, PhD Student, Department of Mathematics, Caltech,
4:00pm – 5:00pm
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Number Theory Seminar

Linde Hall 387
Manin's conjecture for Châtelet surfaces
Katharine Woo, Postdoctoral Fellow, Department of Mathematics, Stanford University,
4:00pm – 5:00pm
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Physics Colloquium

Online and In-Person Event
From Lab to Cosmos: Three Frontiers in the Search for Signs of Life Beyond Earth
Sara Seager, Professor of Physics, Department of Physics, MIT,
Friday, October 24th, 2025
9:30am – 10:30am
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High Energy Physics Seminar

Online and In-Person Event
Gravitational Waves from the Fifth-Force Mergers
Xingpeng Wang, Kavli IPMU, University of Tokyo,
11:00am – 12:00pm
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High Energy Theory Seminar

Online and In-Person Event
Algebras for generalized entanglement wedges?
Mark Van Raamsdonk, University of British Columbia,
12:00pm – 1:00pm
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Caltech Eaton Fire Recovery "Normal" Trauma Responses-What to Look For

12:00pm – 1:00pm
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IQIM Postdoctoral and Graduate Student Seminar

East Bridge 114
Digital quantum simulation and error correction frontier with atom arrays
Simon Evered, Harvard,
2:00pm – 3:00pm
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TAPIR Seminar

Online and In-Person Event
Bridging Scales in Black Hole Accretion and Feedback: Relativistic Jet linking the Horizon to the Host Galaxy
Hyerin Cho, Graduate Student, CfA, Harvard University,
3:00pm – 4:00pm
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Geometry and Topology Seminar

Linde Hall 187
Splitting spheres and barbells
Alison Tatsuoka, PhD Student, Department of Mathematics, Princeton University,
Monday, October 27th, 2025
4:00pm – 5:00pm
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High Energy Physics Seminar

Online and In-Person Event
Dark Radiation from the Axiverse
Christopher Dessert, Flatiron Institute CCA,
4:00pm – 5:00pm
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Quantum Matter Seminar

East Bridge 114
Defining mixed-state phases of matter: What replaces the idea of "gap"?
Prof. Jong Yeon Lee, Physics and Mathematics, University of Urbana - Champaign,
,
7:30pm – 9:30pm
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Astronomy on Tap

Exoplanets
Katelyn Horstman, PhD Candidate, Department of Astronomy, Caltech,
Aniket Sanghi, PhD Candidate, Department of Astronomy, Caltech,
Tuesday, October 28th, 2025
4:00pm – 5:00pm
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Chemical Physics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Spectroscopic Probes of (Interstellar) Aromatic Molecular Evolution
Brett A McGuire, Associate Professor; Adjunct Assistant Astronomer,, Department of Chemistry, Massachusetts Institute of Technology,
4:00pm – 5:00pm
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High Energy Physics Seminar

Online and In-Person Event
On Theories of Neutrino Masses and Dark Matter
Pavel Fileviez Perez, Case Western University,
Wednesday, October 29th, 2025
11:00am – 12:00pm
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High Energy Theory Seminar

Online and In-Person Event
Flat Space/Carrollian Limit of AdS/CFT
Romain Ruzziconi, Harvard University,
12:00pm – 1:00pm
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Logic Seminar

Online Event
Isometry groups of Polish ultrametric spaces
Riccardo Camerlo, Associate Professor, Department of Mathematics, Università di Genova,
12:15pm – 1:00pm
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Caltech/IPAC Lunch Seminar

IPAC 102 (Large Conference Room)
Kernel Based Moving Object Detection
Dino Bektešević, U. Washington,
4:00pm – 5:00pm
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ASTRONOMY COLLOQUIUM

Cahill, Hameetman Auditorium
Discoveries of Interstellar PAHs from Cold Clouds to the Solar System
Brett McGuire, Associate Professor, Department of Chemistry, Massachusetts Institute of Technology,
Thursday, October 30th, 2025
2:30pm – 3:30pm
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IQIM Postdoctoral and Graduate Student Seminar

East Bridge 114
Quantum advantage from random geometrically-two-local Hamiltonian dynamics
Yihui Queck, Ecole polytechnique fédérale de Lausanne EPFL,
4:00pm – 5:00pm
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Physics Colloquium

Online and In-Person Event
Hunting the Unexpected: Anomaly Detection and Real-Time Triggers at the Large Hadron Collider
Jennifer Ngadiuba, Fermilab,
Friday, October 31st, 2025
11:00am – 12:00pm
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High Energy Theory Seminar

Online and In-Person Event
Continuous Non-Invertible Symmetries
Diego Delmastro, UCLA,
12:00pm – 1:00pm
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IQIM Postdoctoral and Graduate Student Seminar

East Bridge 114
Planar fault-tolerant circuits for non-Clifford logic gates – decoding non-Abelian phases
Julio Magdalena, Freie Universitat Berlin,
,
2:00pm – 3:00pm
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TAPIR Seminar

Online and In-Person Event
Towards Next-Generation Gravitational-Wave Detectors: Intermediate-Mass Black Holes and Stochastic Backgrounds
Luca Reali, Graduate Student, Astrophysics & Gravitational-Wave Astronomy, Johns Hopkins University,
3:00pm – 4:00pm
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Geometry and Topology Seminar

Linde Hall 187
Curvature, macroscopic dimensions, and symmetric products of surfaces
Ekansh Jauhari, Ph.D. Candidate, Department of Mathematics, University of Florida,