Events and Activities

Explore current and upcoming events and activities happening at the Institute for Advanced Study.

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To contact the events office, please call (609) 951-4595 or email events@ias.edu

Apr
07
2026

Institute for Advanced Study / Princeton University Joint Astrophysics Colloquium

On the Origins of Cosmic Rays
Damiano Caprioli
11:00am|Peyton Hall Auditorium

The origin of extraterrestrial energetic particles ("cosmic rays") has puzzled scientists since the pioneering discovery by Victor Hess in 1912. In the last decade, however, modern supercomputers and multi-wavelength observations have opened new...

Apr
07
2026

IAS Phenomenology Lunch and Meet

Information Discussions on Phenomenology and New Theories beyond the Standard Model
12:30pm|Bloomberg Hall Biology Conference Room (1st Floor, Room 113)

This semester, we will be beginning a *very informal* get-together every Monday of people interested in/working on phenomenology and new theories beyond the standard model.  The idea is to discuss over lunch, perhaps meet up around 12.20, grab lunch...

Apr
07
2026

Joint IAS/PU Symplectic Geometry Seminar

Tight Contact Structures and Torus Knots
Hyunki Min
1:00pm|Simonyi 101 and Remote Access

One of the fundamental problems in contact topology is to classify contact structures on a given 3-manifold. In particular, classifying contact structures on surgeries along a given knot has been very poorly studied. The only fully understood case...

Apr
07
2026

Analysis and Mathematical Physics

On Singular Points in the Supercooled Stefan Problem
Max Engelstein
2:30pm|Simonyi Hall 101 and Remote Access

The supercooled Stefan problem models how water, cooled below freezing, forms into ice. Experiments have shown that this process can exhibit nucleation (pieces of ice forming spontaneously) and that fractal-like patterns can emerge in the ice. This...

Apr
07
2026

Princeton University High Energy Theory Seminar

Axion Wormholes: Off-Shell Action and a Bound on CFT Couplings
Gabriele Di Ubaldo
2:30pm|Jadwin Hall, PCTS Room 407

Abstract: We analyze axion and axio-dilaton wormholes in flat space and AdS. Wormholes with Dirichlet boundary conditions for the axion are generally off-shell. By working with fixed flux boundary conditions for the higher-form axion field and...

Apr
07
2026

Princeton University Dark Cosmos Seminar

Low-Mass Galaxies as Probes of Dark Matter Physics
Niusha Ahvazi
4:00pm|Jadwin Hall, Joe Henry Room

Abstract: Dwarf galaxies, despite (or perhaps because of) their small masses, are puzzles that challenge prevailing cosmological models. As the most common galaxies in the universe, they offer a powerful window into studying dark matter on the...

Apr
07
2026

Joint IAS/PU Groups and Dynamics Seminar

Arithmetic on Markoff Surfaces
Daniel Martin
4:30pm|Simonyi 101

The generalized Markoff equation gives rise to a dynamical system via the Markoff group acting on the solution set. This talk considers the resulting dynamics over finite fields, which has strong connections with combinatorial group theory and...

Apr
08
2026

Special Year Learning Seminar

On a Problem of Polya and Some of its Evolutions
Umberto Zannier
2:00pm|Simonyi 101

Around 1921 Polya asked about the algebraicity of the indefinite integral of an algebraic function, in terms of the integrality of the coefficients in a power-series expansion. Polya nicely answered the special case of rational functions, using...