Archive of IAS Physics Group Meetings

Nov
13
2024

IAS Physics Group Meeting

The Positive Way to use Moduli Spaces of Curves
11:00am|Bloomberg Lecture Hall (IAS)

Abstract: A remarkably simple idea makes it possible to put global positive coordinates on moduli spaces of curves. I will give an update on recent developments in understanding these coordinates and applying them moduli space integrals. Interesting...

Nov
06
2024

IAS Physics Group Meeting

An Update on Confining Strings from Lattice
Sergei Dubovsky
11:00am|Bloomberg Lecture Hall (IAS)
Oct
23
2024

IAS Physics Group Meeting

On Type II String Theory on $AdS_3$ x $S^3$ x $T^4$ and Symmetric Orbifolds
11:00am|Bloomberg Lecture Hall (IAS)

Abstract: I will present some questions and answers regarding the duality between 1+1-dimensional superconformal field theory and type II string theory on $AdS_3 \times S^3 x T^4$.

For one unit of NS-NS 5-brane flux ($Q_5$=1), this string theory has...

Oct
02
2024

IAS Physics Group Meeting

Trees, Self Dual Gravity, Gravity MHV Amplitudes, Lw1+infinity
11:00am|Bloomberg Lecture Hall (IAS)

Abstract: Based on https://arxiv.org/abs/2408.11139 . In this talk we'll explain how self-dual metrics (which correspond to spacetimes containing only positive helicity gravitons) can be written as a sum over connected "tree" diagrams, which are...

Sep
18
2024

IAS Informal Physics Seminar

Symmetry Topological Field Theory for 1+1d Lattice Models and 2+1d Gapped Phases with Categorical Symmetries
Apoorv Tiwari
1:30pm|Bloomberg Lecture Hall (IAS)

Abstract: Non-invertible categorical symmetries have emerged as a powerful tool to uncover new beyond-Landau quantum phases and phase transitions. The general theory of such phases and transitions has been studied systematically primarily in (1+1)d...

Sep
18
2024

IAS Physics Group Meeting

Bulk Volume Differences as the Holographic Dual of the Index of Boundary Algebra Inclusions
11:00am|Bloomberg Lecture Hall (IAS)

Abstract: In the AdS/CFT correspondence, it is of great importance to understand the emergence of bulk geometry from quantum mechanical degrees of freedom on the boundary. Volumes of spatial subregions are key quantities characterizing the bulk...