Archive of IAS Monday High Energy Theory Seminars

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...
Apr
30
2018

High Energy Theory Seminar

Probing Binary Black Hole Environments in Hierarchical Triple Systems
Lisa Randall
2:30pm|Bloomberg Lecture Hall
With the recent LIGO results it has been clear that we can learn a lot about the distribution of binary black hole systems. Yet the origin of these black holes is still unknown. Do they come from galactic centers, globular clusters, or from more...
Apr
16
2018

High Energy Theory Seminar

FZZ Duality and the Black Hole Horizon
2:30pm|Bloomberg Lecture Hall
We discuss some target space aspects of the FZZ duality both in the Euclidean setup of the cigar geometry and in the SL(2)/U(1) black hole. We argue that the 2D classical SL(2)/U(1) black hole could shed some light on quantum black holes in higher...
Apr
02
2018

High Energy Theory Seminar

6d Theories on Circle and Curves
2:30pm|Bloomberg Lecture Hall
In this talk I review new results obtained for SCFT's in 4 and 5 dimensions by compactifying 6 dimensional (1,0) SCFT's on a circle or on Riemann surfaces.
Mar
19
2018

High Energy Theory Seminar

Tensor Networks as Geometry
Guifre Vidal
2:30pm|Bloomberg Lecture Hall
The multiscale entanglement renormalization ansatz (MERA) is a tensor network that can efficiently approximate ground states of critical spin chains --that is, lattice versions of 1+1 CFTs. Its network structure extends in an additional dimension...