Physics

event

IAS Quantum Aspects of Black Holes Group Meeting

December 11, 2025 | 11:00am - 12:00pm
Add to calendar 12/11/2025 11:00 12/11/2025 12:00 IAS Quantum Aspects of Black Holes Group Meeting use-title Topic: TBA Speakers: Xiaoliang Qi, Stanford University More: https://www.ias.edu/sns/events/ias-quantum-aspects-black-holes-group-meeting-55 Bloomberg Hall Physics Library & Zoom a7a99c3d46944b65a08073518d638c23
event

IAS Physics+Astro Meeting

December 09, 2025 | 2:30pm - 4:00pm
Add to calendar 12/09/2025 14:30 12/09/2025 16:00 IAS Physics+Astro Meeting use-title Topic: Amplitudes for Gravitational Waves - Part 1 Speakers: Zihan Zhou, Princeton University More: https://www.ias.edu/sns/events/ias-physicsastro-meeting-1 Bloomberg Lecture Hall (IAS) a7a99c3d46944b65a08073518d638c23
event

IAS High Energy Theory Seminar

December 08, 2025 | 2:30pm - 3:30pm
Add to calendar 12/08/2025 14:30 12/08/2025 15:30 IAS High Energy Theory Seminar use-title Topic: Entanglement Bootstrap and Conformal Field Theory Speakers: John McGreevy, University of California, San Diego More: https://www.ias.edu/sns/events/ias-high-energy-theory-seminar-105 ABSTRACT: Entanglement Bootstrap is a research program to understand and extract the universal data of quantum many body states from local entanglement information.  Since this universal data is usually encoded in a quantum field theory, the program can teach us about QFT.  The program proceeds by identifying conditions satisfied by the reduced density matrix of a ball for a given class of fixed-point states.  After briefly reviewing what we've learned about the topological field theories that describe the low energy physics of liquid gapped states, I'll describe our progress at using this philosophy to learn about conformal field theory in 1+1 dimensions and above.  The talk is based on work with Xiang Li, Ting-Chun (David) Lin, and Rolando Ramirez Camasca. Bloomberg Lecture Hall (IAS) & Zoom a7a99c3d46944b65a08073518d638c23

Abstract: Entanglement Bootstrap is a research program to understand and extract the universal data of quantum many body states from local entanglement information.  Since this universal data is usually encoded in a quantum field theory, the program...

event

Princeton University Gravity Initiative Seminar

December 08, 2025 | 12:30pm - 1:30pm
Add to calendar 12/08/2025 12:30 12/08/2025 13:30 Princeton University Gravity Initiative Seminar use-title Topic: Cryptographic tests of the python's lunch conjecture Speakers: Michelle Xu, Stanford University More: https://www.ias.edu/sns/events/princeton-university-gravity-initiative-seminar-10 ABSTRACT: In AdS/CFT, a spacetime geometry is said to contain a python's lunch when there exist choices of boundary regions with associated entanglement wedges that contain locally but not globally minimal surfaces. Previously, such geometries have been connected to black hole evaporation and modelled with tensor networks featuring ancillas both added and projected, which has in turn led researchers to conjecture that reconstructing information from past the locally minimal surface is computationally difficult. In this work, we use quantum cryptographic tools related to a primitive known as the Conditional Disclosure of Secrets (CDS) to further develop consequences of the projective tensor network model. We argue from the tensor network picture that the mutual information between appropriate CFT subregions is lower bounded linearly by an area difference associated with the geometry of the lunch, which has bulk geometric consequences we can check. We prove weakened versions of this geometrical statement in asymptotically AdS3 spacetimes satisfying the null energy condition, and confirm it in some example geometries. Jadwin Hall, Princeton Gravity Initiative, 4th Floor a7a99c3d46944b65a08073518d638c23

Abstract: In AdS/CFT, a spacetime geometry is said to contain a python's lunch when there exist choices of boundary regions with associated entanglement wedges that contain locally but not globally minimal surfaces. Previously, such geometries have...

event

IAS CMP/QFT Group Meeting

December 08, 2025 | 11:00am - 12:00pm
Add to calendar 12/08/2025 11:00 12/08/2025 12:00 IAS CMP/QFT Group Meeting use-title Topic: Generalized Symmetries of Relative QFTs and Chiral Algebras Speakers: Brandon Rayhaun, Institute for Advanced Study More: https://www.ias.edu/sns/events/ias-cmpqft-group-meeting-23 ABSTRACT: I will sketch a theory of finite, generalized symmetries of 2D QFTs which live at the boundary of a bulk topological theory in one higher dimension, emphasizing various new ingredients which arise in the presence of a nontrivial bulk. This theory is particularly effective when it is applied to the chiral half of a rational conformal field theory, which can be thought of as furnishing a gapless boundary condition of a 3D TQFT. In particular, I will explain how one can construct additional symmetries of a full rational conformal field theory, beyond its Verlinde lines, by “gluing” together symmetries of its left- and right-moving chiral halves. Much of the general framework will be illustrated with examples, and many open problems will be discussed. Bloomberg Lecture Hall (IAS) a7a99c3d46944b65a08073518d638c23

Abstract: I will sketch a theory of finite, generalized symmetries of 2D QFTs which live at the boundary of a bulk topological theory in one higher dimension, emphasizing various new ingredients which arise in the presence of a nontrivial bulk. This...

event

IAS/PCTS/PGI Workshop on Quantum Aspects of Black Holes and Spacetime

December 02, 2025 | 9:00am - 6:00pm
December 03, 2025 | 9:00am - 6:00pm
December 04, 2025 | 9:00am - 6:00pm
December 05, 2025 | 9:00am - 5:00pm
Add to calendar 12/05/2025 09:00 12/05/2025 17:00 IAS/PCTS/PGI Workshop on Quantum Aspects of Black Holes and Spacetime use-title More: https://www.ias.edu/sns/events/iaspctspgi-workshop-quantum-aspects-black-holes-and-spacetime TUESDAY-FRIDAY, DECEMBER 2-5, 2025 - INSTITUTE FOR ADVANCED STUDY Program Organizers: Netta Engelhardt, _Massachusetts Institute of Technology_ Jonah Kudler-Flam,_ Institute for Advanced Study_ Henry Lin,_ Princeton University_ Juan Maldacena, _Institute for Advanced Study_ Gautam Satishchandran,_ Princeton University_ Edward Witten,_ Institute for Advanced Study_ This workshop will focus on quantum aspects of black holes and other interesting spacetimes such as de-Sitter.  The workshop is jointly sponsored by the Princeton Center for Theoretical Science, the Princeton Gravity Initiative, and the Nelson Center at the Institute for Advanced Study. REGISTRATION IS OPEN! https://www.eventbrite.com/e/registration-workshop-on-quantum-aspects-of-black-holes-and-spacetime-tickets-1342770325189?aff=oddtdtcreator [https://www.eventbrite.com/e/registration-workshop-on-quantum-aspects-of-black-holes-and-spacetime-tickets-1342770325189?aff=oddtdtcreator] CONTACT LISA FLEISCHER, LISA@IAS.EDU, WITH ANY INQUIRIES. Wolfensohn Hall a7a99c3d46944b65a08073518d638c23
Tuesday-Friday, December 2-5, 2025 - Institute for Advanced Study

Program Organizers:
Netta Engelhardt, Massachusetts Institute of Technology
Jonah Kudler-Flam, Institute for Advanced Study
Henry Lin, Princeton University
Juan Maldacena, Institute for...

event

IAS/PCTS/PGI Workshop on Quantum Aspects of Black Holes and Spacetime

December 02, 2025 | 9:00am - 6:00pm
December 03, 2025 | 9:00am - 6:00pm
December 04, 2025 | 9:00am - 6:00pm
December 05, 2025 | 9:00am - 5:00pm
Add to calendar 12/05/2025 09:00 12/05/2025 17:00 IAS/PCTS/PGI Workshop on Quantum Aspects of Black Holes and Spacetime use-title More: https://www.ias.edu/sns/events/iaspctspgi-workshop-quantum-aspects-black-holes-and-spacetime TUESDAY-FRIDAY, DECEMBER 2-5, 2025 - INSTITUTE FOR ADVANCED STUDY Program Organizers: Netta Engelhardt, _Massachusetts Institute of Technology_ Jonah Kudler-Flam,_ Institute for Advanced Study_ Henry Lin,_ Princeton University_ Juan Maldacena, _Institute for Advanced Study_ Gautam Satishchandran,_ Princeton University_ Edward Witten,_ Institute for Advanced Study_ This workshop will focus on quantum aspects of black holes and other interesting spacetimes such as de-Sitter.  The workshop is jointly sponsored by the Princeton Center for Theoretical Science, the Princeton Gravity Initiative, and the Nelson Center at the Institute for Advanced Study. REGISTRATION IS OPEN! https://www.eventbrite.com/e/registration-workshop-on-quantum-aspects-of-black-holes-and-spacetime-tickets-1342770325189?aff=oddtdtcreator [https://www.eventbrite.com/e/registration-workshop-on-quantum-aspects-of-black-holes-and-spacetime-tickets-1342770325189?aff=oddtdtcreator] CONTACT LISA FLEISCHER, LISA@IAS.EDU, WITH ANY INQUIRIES. Wolfensohn Hall a7a99c3d46944b65a08073518d638c23
Tuesday-Friday, December 2-5, 2025 - Institute for Advanced Study

Program Organizers:
Netta Engelhardt, Massachusetts Institute of Technology
Jonah Kudler-Flam, Institute for Advanced Study
Henry Lin, Princeton University
Juan Maldacena, Institute for...

event

IAS/PCTS/PGI Workshop on Quantum Aspects of Black Holes and Spacetime

December 02, 2025 | 9:00am - 6:00pm
December 03, 2025 | 9:00am - 6:00pm
December 04, 2025 | 9:00am - 6:00pm
December 05, 2025 | 9:00am - 5:00pm
Add to calendar 12/05/2025 09:00 12/05/2025 17:00 IAS/PCTS/PGI Workshop on Quantum Aspects of Black Holes and Spacetime use-title More: https://www.ias.edu/sns/events/iaspctspgi-workshop-quantum-aspects-black-holes-and-spacetime TUESDAY-FRIDAY, DECEMBER 2-5, 2025 - INSTITUTE FOR ADVANCED STUDY Program Organizers: Netta Engelhardt, _Massachusetts Institute of Technology_ Jonah Kudler-Flam,_ Institute for Advanced Study_ Henry Lin,_ Princeton University_ Juan Maldacena, _Institute for Advanced Study_ Gautam Satishchandran,_ Princeton University_ Edward Witten,_ Institute for Advanced Study_ This workshop will focus on quantum aspects of black holes and other interesting spacetimes such as de-Sitter.  The workshop is jointly sponsored by the Princeton Center for Theoretical Science, the Princeton Gravity Initiative, and the Nelson Center at the Institute for Advanced Study. REGISTRATION IS OPEN! https://www.eventbrite.com/e/registration-workshop-on-quantum-aspects-of-black-holes-and-spacetime-tickets-1342770325189?aff=oddtdtcreator [https://www.eventbrite.com/e/registration-workshop-on-quantum-aspects-of-black-holes-and-spacetime-tickets-1342770325189?aff=oddtdtcreator] CONTACT LISA FLEISCHER, LISA@IAS.EDU, WITH ANY INQUIRIES. Wolfensohn Hall a7a99c3d46944b65a08073518d638c23
Tuesday-Friday, December 2-5, 2025 - Institute for Advanced Study

Program Organizers:
Netta Engelhardt, Massachusetts Institute of Technology
Jonah Kudler-Flam, Institute for Advanced Study
Henry Lin, Princeton University
Juan Maldacena, Institute for...

event

Princeton University Dark Cosmos Seminar

December 02, 2025 | 4:00pm - 5:30pm

Abstract: Strong gravitational lenses have provided great insights into the expansion history of the universe and the dark matter distribution from clusters down to sub-galactic scales. Current state-of-the-art measurements involving strong...