Archive of IAS Monday High Energy Theory Seminars

Sep
12
2016

High Energy Theory Seminar

Moonshine, Old and New
Jeffrey Harvey
2:30pm|Bloomberg Lecture Hall
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...
May
16
2016

High Energy Theory Seminar

Effective Field Theory of Dissipative Fluids
Hong Liu
2:30pm|Bloomberg Lecture Hall
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...
Apr
25
2016

High Energy Theory Seminar

Elliptic Calabi-Yau Manifolds and the F-theory Landscape
Washington Taylor
2:30pm|Bloomberg Lecture Hall
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...
Apr
11
2016

High Energy Theory Seminar

Charge-vortex duality and Dirac Fermions in (2+1)d
Chong Wang
2:30pm|Bloomberg Lecture Hall
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...
Mar
28
2016

High Energy Theory Seminar

Linearity of Holographic Entanglement Entropy
Ahmed Almheiri
2:30pm|Bloomberg Lecture Hall
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...
Mar
14
2016

High Energy Theory Seminar

Complexity Behind the Horizon
Leonard Susskind
2:30pm|Bloomberg Lecture Hall

Quantum mechanics is distinguished by three essential features: the Hugeness of Hilbert Space, I.e., the capacity for exponential complexity; the phenomenon of Entanglement; and the duality between Wave Function Collapse and Everett's Relative...

Feb
01
2016

High Energy Theory Seminar

Landau Singularities and Symbology
Marcus Spradlin
2:30pm|Bloomberg Lecture Hall
In previous work it has been observed that the singularity structure of multi-loop scattering amplitudes in planar N=4 super-Yang-Mills theory is evidently dictated by cluster algebras. In my talk I will discuss the interplay between this...
Dec
14
2015

High Energy Theory Seminar

Chaos in Quantum Channels
Daniel Roberts
2:30pm|Bloomberg Lecture Hall

Motivated by black hole physics and holography, we study chaos, scrambling, and complexity by considering the entanglement properties of unitary operators. First, we develop a diagnostic of chaos by directly considering the time evolution of a...

Nov
30
2015

High Energy Theory Seminar

Signs of Hope: A Few LHC Run I Results to Watch for Run II
Maurizio Pierini
2:30pm|Bloomberg Lecture Hall

During the first LHC long shutdown, the CMS collaboration finalised the study of the 8TeV data collected in 2012. Within the impressive amount of results produced, a few searches for new physics show a tension with the prediction from the Standard...

Physics