Archive of IAS Monday High Energy Theory Seminars

Feb
25
2019

High Energy Theory Seminar

Twisted holography for the N=4 chiral algebra
Kevin Costello
2:30pm|Bloomberg Lecture Hall
Beem et al. used a superconformal supercharge to localize N=4 Yang-Mills to a two-dimensional chiral theory. I will discuss my work with Gaiotto, in which we analyze the holographic dual of this localization. We argue that the same localization...
Jan
28
2019

High Energy Theory Seminar

Under Construction: A Progress Report on a Theory of SUSY Representations
S. James Gates, Jr.
2:30pm|Bloomberg Lecture Hall
Compact Lie Algebras su(N) have aspects of their representations conveniently expressed in terms of matrices, but they also have some aspect that are most conveniently described by terms of graphical means, i.e. weight spaces, root space, Dynkin...
Dec
10
2018

High Energy Theory Seminar

’t Hooft Anomalies, High-T, and Low-T Domain Walls in Adjoint Fermion Theories with (or without) Supersymmetry
Erich Poppitz
2:30pm|Bloomberg Lecture Hall
We study ’’t Hooft anomalies of 1-form and 0-form symmetries in SU(N) gauge theories with adjoint fermions, focusing on the rich worldvolume physics of domain walls mandated by anomaly inflow. In two semiclassical regimes—one of the high-T theory...
Nov
12
2018

High Energy Theory Seminar

Energy is Entanglement
Arvin Shahbazi Moghaddam
2:30pm|Bloomberg Lecture Hall
We compute the local second variation of the von Neumann entropy of a region in theories with a gravity dual. For null variations our formula says that the diagonal part of the Quantum Null Energy Condition is saturated in every state, thus...
Oct
15
2018

High Energy Theory Seminar

Tree Amplitudes for Some Supersymmetric Theories in Six Dimensions
John Schwarz
2:30pm|Bloomberg Lecture Hall
All of the tree amplitudes are constructed for four supersymmetric theories in six dimensions using spinor-helicity variables and the CHY formalism. Two of the theories, the world volume theories of an M5-brane and a D5-brane, only have nonzero...
Oct
01
2018

High Energy Theory Seminar

Entanglement Branes and Extended Topological Quantum Field Theory
William Donnelly
2:30pm|Bloomberg Lecture Hall
Entanglement is an important property of quantum systems, but its precise definition in field theory poses some challenges. The problem is particularly acute in gauge theories and string theory, where extended objects such as Wilson loops and...
Sep
17
2018

High Energy Theory Seminar

Higher-form Symmetries in Magnetohydrodynamics, Effective Field Theory and Holography
Saso Grozdanov
2:30pm|Bloomberg Lecture Hall
Jun
04
2018

High Energy Theory Seminar

The Future of High Energy Physics and China's Role
Yifang Wang
2:30pm|Bloomberg Lecture Hall
Since the discovery of Higgs, particle physics is now face a transition. What is the next step is the major questions to our field. I will discuss an initiative from China: Circular electron-positron Collider and its design and R&D progress. In...