# Events Archive

PCTS-Low-dimensional Holography and Black Holes
Thu, Mar 31, 2022, 9:00 am9:00 am

This meeting will be presented in a hybrid format with in-person for invited speakers and Princeton University Affiliates (must have a PU ID).  Non-PU affiliates should register to participate via Zoom.

Organizers: Scott Collier, Matthew Heydeman, Luca Iliesiu, Vladimir Narovlansky, Gustavo J. Turiaci, Herman Verlinde…

PCTS-Low-dimensional Holography and Black Holes
Wed, Mar 30, 2022, 9:00 am9:00 am

This meeting will be presented in a hybrid format with in-person for invited speakers and Princeton University Affiliates (must have a PU ID).  Non-PU affiliates should register to participate via Zoom.

Organizers: Scott Collier, Matthew Heydeman, Luca Iliesiu, Vladimir Narovlansky, Gustavo J. Turiaci, Herman Verlinde…

Mathematical Physics Seminar, Tues Mar 29, 4:30PM, Jadwin A06, Vieri Mastropietro, IAS and University of Milan, "Anomaly non-renormalization on a lattice"
Tue, Mar 29, 2022, 4:30 pm4:30 pm

The Adler-Bardeen non-renormalization is a basic property of anomalies with important physical implications, ranging from particle physics to condensed matter. We prove its validity in lattice models at a non-perturbative level, focusing in particular on fermion-vector boson models in 3+1 and 1+1 dimensions. The proof relies on regularity…

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PCTS-Boundaries and Defects in CFT and Holography
Tue, Mar 29, 2022, 9:00 am9:00 am

The meeting will be a hybrid presentation of in person, for Princeton University affiliates and Invited Speakers, and a Zoom presentation for all NON PU affiliates.  Registration is required for everyone to receive the Zoom link and to participate, so please register

IAS HET Seminar | Javier Fuentes, University of Granada| “Following the Footprints of the B-physics Anomalies” | Wolfensohn Hall (behind Bloomberg Hall) & on Zoom
Mon, Mar 28, 2022, 2:30 pm2:30 pm

Recent B-meson data show a reinforced set of deviations from the Standard Model predictions, pointing to violations of lepton flavor universality. I will critically review these data and discuss their theoretical interpretation, including their possible connection to the hierarchical pattern of fermions masses and mixing angles. To this end, I…

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Biophysics Seminar: Arnold Mathijssen, University of Pennsylvania|Transport and delivery by active droplets and artificial microtubules
Mon, Mar 28, 2022, 12:30 pm12:30 pm

Understanding the physics of living systems allows us to design new materials that are active and adaptive, akin to cells and tissues. Conversely, these active matter systems can reveal fundamental principles in physics and biology. In this talk, I will discuss three systems that feature this synergy, ranging from the molecular to the…

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A free lecture open to the public.
PGI Spring Seminar|Zoe Wyatt|University of Cambridge|"Stabilizing Relativistic Fluids on Slowly Expanding Cosmological Spacetimes "
Mon, Mar 28, 2022, 12:30 pm12:30 pm

"On a background Minkowski spacetime, the relativistic Euler equations are known, for a relatively general equation of state, to admit unstable homogeneous solutions with finite-time shock formation. By contrast, such shock formation can be suppressed on background cosmological spacetimes whose spatial slices expand at an accelerated rate. The…

PCTS-Boundaries and Defects in CFT and Holography
Mon, Mar 28, 2022, 9:00 am9:00 am

The meeting will be a hybrid presentation of in person, for Princeton University affiliates and Invited Speakers, and a Zoom presentation for all NON PU affiliates.  Registration is required for everyone to receive the Zoom link and to participate, so please register

IAS HET Seminar | Matthew Heydeman, Member, School of Natural Sciences, IAS| “Nearly BPS Black Holes in AdS5 and their Spectrum in N=4 SYM” | Wolfensohn Hall (behind Bloomberg Hall) & on Zoom
Fri, Mar 25, 2022, 1:45 pm1:45 pm

In this talk, we will discuss quantum corrections in the gravitational path integral around nearly 1/16-BPS black holes in asymptotically AdS5 x S5 space, dual to heavy operators in N=4 SYM. We argue these quantum corrections come from a version of the N=2 super-Schwarzian theory which captures the breaking of the SU(1,1|1) near horizon…

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PRISM/PCCM seminar: Chemically Controlled Shape-morphing of Elastic Sheets
Wed, Mar 23, 2022, 12:00 pm12:00 pm

Please join us Wednesday, March 23, 2022, at 12:00 noon for the webinar featuring Prof. Anna Balazs of The University of Pittsburgh.

Registration is required for this webinar:  Registration form(link is external)

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Mathematical Physics Seminar, Tues Mar 22, 4:30pm, Jadwin A06, Louis-Pierre Arguin, Baruch College & Graduate Center CUNYStatistical mechanics perspective on the large values of the Riemann zeta function’’
Tue, Mar 22, 2022, 4:30 pm4:30 pm

I will give an account of the recent progress in probability and in number theory to understand the large values of the zeta function on the critical line, especially in short intervals. The problems have interesting connections to statistical mechanics of disordered systems, both in their interpretations…

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HET Seminar | Julio Parra-Martinez , Caltech | “Causality constraints on corrections to Einstein gravity” | PCTS Room 407
Mon, Mar 21, 2022, 2:30 pm2:30 pm

We study constraints from causality and unitarity on 2→2 graviton scattering in four-dimensional weakly-coupled effective field theories. Together, causality and unitarity imply dispersion relations that connect low-energy observables to high-energy data. Using such dispersion relations, we derive two-sided bounds on gravitational Wilson…

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Canceled and will be re-scheduled. Biophysics Seminar: Na Ji| UC Berkeley| Imaging the brain at high spatiotemporal resolution
Mon, Mar 21, 2022, 12:30 pm12:30 pm

To understand computation in the brain, one needs to understand the input-output relationships for neural circuits and the anatomical and functional properties of individual neurons therein. Optical microscopy has emerged as an ideal tool in this quest, as it is capable of recording the activity of neurons distributed over millimeter dimensions…

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A free lecture open to the public.
PGI Spring Seminar|Aron Daniel Kovacs|SISSA,Italy|"On the Local Cauchy Problem in Effective Theories of Gravity"
Mon, Mar 21, 2022, 12:30 pm12:30 pm

Effective field theory provides a way of parameterizing strong-field deviations from General Relativity that might be observable in the gravitational waves emitted in a black hole merger. To perform numerical simulations of black hole mergers in such theories it is necessary that the equations be written in a form that admits a well-posed…

PRISM/PCCM seminar: Mid-Infrared Nanophotonics for Sensing and Nanoscale Manipulation
Wed, Mar 16, 2022, 12:00 pm12:00 pm

Registration is required. You can register using this form here(link is external).
All seminars are held on Wednesdays from 12:00 noon-1:00 p.m. in the Bowen Hall Auditorium Room 222. A light lunch is…

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Mathematical Physics Seminar, Tues Mar 15, 4:30pm, Jadwin A06, Amol Aggarwal, IAS, Princeton,"Six-Vertex Model and the KPZ Universality Class "
Tue, Mar 15, 2022, 4:30 pm4:30 pm

In this talk we explain recent results relating the six-vertex model and the Kardar-Parisi-Zhang (KPZ) universality class. In particular, we describe how the six-vertex model can be used to analyze stochastic interacting particle systems, such as asymmetric exclusion processes, and how infinite-volume pure…

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IAS HET Seminar | Anatoly Dymarsky, University of Kentucky & Skoltech | "Codes and Conformal Field Theories" | Wolfensohn Hall (behind Bloomberg Hall) & on Zoom
Mon, Mar 14, 2022, 2:30 pm2:30 pm

I will review recent progress connecting (quantum) codes with two-dimensional conformal field theories of the Narain type. In the first part of the talk I will show how codes can be used to construct CFTs with large spectral gap. In the second part I will construct a map from a large class of rational Narain CFTs to quantum stabilizer codes.

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PGI Spring Seminar Series|Helvi Witek|University of Illinois at Urbana-Champaign|" The Adventures of Black Holes: the Case of Quadratic Gravity"|
Mon, Mar 14, 2022, 12:30 pm12:30 pm

With the advent of gravitational wave astronomy we are now in a perfect position to confront the multitude of beyond-GR theories, typically invoked to connect to quantum gravity paradigms, with observations in the strong-field regime of gravity.
A necessary ingredient to do so are theoretical models describing the…

IAS HET Seminar | Giulio Salvatori, Member, School of Natural Sciences, IAS| “Scattering Amplitudes, Positive Geometries and Surfaces” | Wolfensohn Hall (behind Bloomberg Hall) & on Zoom
Fri, Mar 11, 2022, 1:45 pm1:45 pm

In recent years we have witnessed the emergence of a novel description for the physics of scattering amplitudes at the heart of which are mathematical structures called Positive Geometries, which loosely speaking are generalizations of polytopes having the crucial feature of encoding in their boundaries the singularity structure of…

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PCTS-New Era of Two-dimensional Quantum Matter
Fri, Mar 11, 2022, 9:05 am9:05 am

In person registration is full and is now closed.  Please register to receive the Zoom link, which will be emailed on Monday, March 7.

Organizers: B. Andrei Bernevig, Vir Bulchandani, Biao Lian, Frank Schindler, Sanfeng Wu, Ali Yazdani

Two-dimensional materials are known to exhibit a rich…