A new approach for solving a strongly coupled theory.

Thurs, Jan 16

10:30am

Aud

AlShapere

Constraints on the Spectra of 2D CFTs

2pm

SSR

Thomas Hertog

Holographic Quantum Cosmology

Fri, Jan 17

10:30am

Aud

Evgeny Skvortsov

Higher-spin symmetry in AdS and CFT

I will discuss RG-inspired derivation of constituents of Vasiliev theory, the problem of uniqueiness of higher-spin symmetries and how to construct correlation functions which are manifestly invariant under higher-spin symmetries.

11:10am

Aud

Viacheslav Didenko

4d black holes and their generalization in higher-spin theory

I will give an overview of entanglement entropy in various systems, describe old and new methods to compute it in QFT, and discuss its relevance for holography.

Thurs,
Jan 22

10:30am

Aud

Francesco Benini

Two-dimensional partition functions, elliptic genera and dualities

Thurs,
Jan 22

2:00pm

MSR

Dave Morrison

Classification of 6D SCFTs

Fri, Jan 23

10:30am

Aud

Peng Zhao

Central charges and RG flow of strongly-coupled N=2 theory.

Blackboard lunch. Caveat emptor: Highly unlikely that any participant of this program will learn anything new (perhaps the grad students).The talk will be aimed mainly at the other programs and will be extremely elementary.

Tue, Feb 4

10:30am

Aud

Balt van Rees

Infinite chiral symmetry in four-dimensional superconformal field theories

Wed, Feb 5

10:30am

Aud

Liam Fitzpatrick

Wilsonian and Large N Approaches to Non-Fermi Liquids

.

2:00pm

MSR

Walter Kohn

Visual Distortions in Macular Degeneration: Quantitative Diagnosis and Correction

We discuss two different approaches to integrability within the framework of N=2 supersymmetric gauge theories. First we look at theories with finite number of massive vacua and study their parameter spaces. This approach leads to a description of quantum many-body systems like spin chains. Second, moduli spaces of vacua of N=2 theories can be conveniently described by VEVs of BPS line operators. In this case the dual many-body system counterparts are models of Hitchin type which arise as classical systems. In the talk I will explain how one can relate integrable systems of the above two kinds and derive various dualities between them.

Tue, Mar 4

11:00am

NOTE UNUSUAL TIME!!

Aud

Zohar Komargodski

Comments on scale invariance, anomalies, and the OPE.

We address the question of whether there are 4D Lorentz invariant unitary quantum field theories with scale invariance but not conformal invariance. An important loophole in the existing arguments is that trace of the energy-momentum tensor T could be a generalized free field. We rule out this possibility. This is achieved by using the structure of four-dimensional anomalies. In addition, we emphasize that short distance physics is not the same as large momentum physics and explain the relation to the problem of scale vs conformal invariance.

Mar 5

10:30am

Aud

TBA

Thu, Mar 6

10:30am

Aud

John Cardy

Thermalization and Revivals after a Quantum Quench in 1+1 dimensional CFT

We study the time evolution from a pure state with extensive energy above the ground state in a CFT. We show that the reduced density matrix of an interval of length $\ell$ in an infinite system is exponentially close to a thermal one after times $t>\ell/2$. For a finite system of length $L$ we study the overlap of the state at time $t$ with the initial state and show that this can expressed in terms of Virasoro characters. For a rational CFT there are finite revivals when $t$ is a multiple of $L/2$, and interesting structure near all rational values of $t/L$. We also study the effect of an irrelevant operator which breaks the integrability and show that the revivals then become increasingly broadened.

Thu,
Mar 6

3:30pm

Main
Seminar
Room

David Gross

Yang-Mills theory: part of a series on the Clay Millennium Prize Problems

Algebra of the Infrared: Mathematical Structures in the IR Limit of Massive d=2 N=(2,2) QFT

Weds Mar 12

Thurs Mar 13

10:30am

Aud

Joe Polchinski

The field theory of intersecting D3-branes

We argue that the low energy field theory on D3-D3' must have magnetically charged solitons. Finding them leads to some interesting puzzles. arXiv.1402.6326

Reducing Supersymmetry of Two-dimensional Sigma Models Down to N=(0,2)

We study of N=(0,2) deformed (2,2) two-dimensional models, in particular,geometric aspects and holomorphic properties of these models. We derive a numberof exact relations for the $\beta$ functions in terms of the anomalous dimensions analogous to the NSVZ beta function in four-dimensional Yang-Mills. We also consider the N=(0,2) supercurrent supermultiplet and its anomalies, as well as the ``Konishi anomaly." This gives us another method for finding two-loop beta functions.

Tues Mar 18

10:30

Anton Kapustin

Anomalies of discrete global symmetries and group cohomology.

Weds Mar 19

AmihayHanany

Coulomb Branch Hilbert Series and the moduli space of instantons

Thurs Mar 20

10:30am

Aud

Jared Kaplan

Universality of Long-Distance AdS Physics from the CFT Bootstrap

Deformed supersymmetric gauge theories from string- and M-theory

Abstract: The fluxtrap background of string theory provides a transparent and algorithmic way of constructing supersymmetric gauge theories with both mass and Omega-type deformations in various dimensions. I will discuss a number of deformed supersymmetric gauge theories in two and four dimensions which can be obtained via the fluxtrap background from string or M–theory. Such theories, the most well-known being Omega–deformed super Yang–Mills theory in four dimensions, have met with a lot of interest in the recent literature. The string theory treatment offers many new avenues of analysis and applications.

Tues April 1

10:30

Aud

Noppadol Mekareeya

3d N=4 Gauge Theories, Hilbert series and Hall-Littlewood Polynomials

## Go to current week.⬇

Week 1TimePlace*SpeakerTitleComments, Links,...All participantsOrganizational MeetingGuidoFestucciaChris HerzogMisha VasilievMaxim ZabzineDavid PolandWeek 2TimePlace*SpeakerTitleComments, Links,...Cristina MarchettiActive Matter: What is it?Emanuel KatzAlShapereThomas HertogEvgeny Skvortsovsymmetries and how to construct correlation functions

which are manifestly invariant under higher-spin symmetries.

Viacheslav DidenkoWeek 3TimePlace*SpeakerTitleComments, Links,...University Holiday,Martin Luther King Jr. Day.Ibou BahJan 22

Tom Hartmanvarious systems, describe old and new methods

to compute it in QFT, and discuss its relevance for holography.

Jan 22

FrancescoBeniniJan 22

DaveMorrisonPengZhaoJoe PolchinskiWeek 4Program conferenceWeek 5TimePlace*SpeakerTitleComments, Links,...Slava RychkovBlackboard lunch.Caveat emptor:Highly unlikely that any participant of this program will learn anything new (perhaps the grad students).The talk will be aimed mainly at the other programs and will be extremely elementary.Balt van ReesLiam FitzpatrickWalter KohnVisual Distortions in Macular Degeneration: Quantitative Diagnosis and CorrectionJoao PenedonesWeek 6TimePlace*SpeakerTitleComments, Links,...Victor GorbenkoDavid Simmons-DuffinTimePlace*SpeakerTitleComments, Links,...University HolidayTarun GroverLorenzoDi PietroKenIntriligatorN=2 gauge theories.

Week 8TimePlace*SpeakerTitleComments, Links,...Jaemo Parkno talkMasahitoYamazakiWeek 9TimePlace*SpeakerTitleComments, Links,...Peter KoroteevNOTE UNUSUALTIME!!ZoharKomargodskiTBAJohn CardyMar 6

Seminar

Room

David GrossAudTBATimePlace*SpeakerTitleComments, Links,...Greg MooreJoe PolchinskiTimePlace*SpeakerTitleComments, Links,...Arkady VainshteinAnton KapustinAmihayHananyJared KaplanTimePlace*SpeakerTitleComments, Links,...Andy Stergiou2:00 pmnote unusual time!Philip ArgyresEliezer RabinoviciTimePlace*SpeakerTitleComments, Links,...Susanne ReffertNoppadol Mekareeya10:30Dan Xie90 min talk

JaroslavTrnkaVolker SchomerusTimePlace*SpeakerTitleComments, Links,...Kimyeong LeeHugh Osborn10:30Shlomo RazamatAbhijit Gadde