Archive of IAS Monday High Energy Theory Seminars

States of quantum matter without quasiparticles can be more precisely characterized by their rapid approach to local thermal equilibrium: this is argued to happen in a shortest possible time of order (Planck’s constant)/((Boltmann’s constant)x...

I will describe a new approach to determining the bulk geometry from a dual field theory. This is based on a special class of spacelike cross-sections of the boundary called light-cone cuts. I will first show that the conformal metric in the bulk (i...

Little string theories are UV complete non-local 6D theories decoupled from gravity in which there is an intrinsic string scale. I will present a systematic approach to the construction of supersymmetric little string theories via F-theory. I will...

Moonshine in mathematics originally referred to unexpected connections between the modular J function and the representation theory of the Monster, the largest sporadic finite group. Recently new kinds of moonshine have been discovered connecting...

We develop an effective field theory for dissipative fluids which governs the dynamics of long-lived gapless modes associated with conserved quantities. The resulting theory gives an action formulation of fluctuating hydrodynamics which incorporates...

This talk will describe recent work on the classification of elliptic Calabi-Yau threefolds and fourfolds, and consequences for the physics of supersymmetric F-theory vacua. The mathematical theory of minimal surfaces and the physically-motivated...

There is an interesting duality in (2+1)d between theories of interacting bosons and U(1) gauge theories with bosonic charge, also known as charge-vortex duality. This duality is very useful for theoretically accessing various strongly interacting...

We consider the question of whether the leading contribution to the entanglement entropy in holographic CFTs is truly given by the expectation value of a linear operator as is suggested by the Ryu-Takayanagi formula. We investigate this property by...