Contents/conteúdo

String Theory Seminar   RSS

Planned sessions

22/10/2019, 16:00 — 17:00 — Room P3.10, Mathematics BuildingInstituto Superior Técnicohttp://tecnico.ulisboa.pt
Michele Cirafici, University of Trieste

Supersymmetric line operators and their spectral problem

I will discuss BPS invariants associated with quantum line operators in certain supersymmetric quantum field theories. Such operators can be specified via geometric engineering in the UV by assigning a path on a certain curve. In the IR they are described by representation theory data. I will discuss the associated BPS spectral problem and the relevant indices.

Note: unusual date

18/11/2019, 15:00 — 16:00 — Room P3.10, Mathematics BuildingInstituto Superior Técnicohttp://tecnico.ulisboa.pt
Francesca Ferrari, SISSA Trieste

$3d$ Modularity

We find and propose an explanation for a large variety of modularity-related symmetries in problems of $3$-manifold topology and physics of $3d$ $N=2$ theories, where such structures a priori are not manifest.

09/12/2019, 15:00 — 16:00 — Room P3.10, Mathematics BuildingInstituto Superior Técnicohttp://tecnico.ulisboa.pt
Paolo Benincasa, Niels Bohr Institute

An SLE approach to four dimensional black hole microstate entropy

We model the Bekenstein-Hawking entropy of a four dimensional extremal black hole in terms of classifying particles moving in its near horizon $AdS_2$ geometry. We use the framework of SLE curves in $AdS_2$ to classify these particle trajectories in terms of their boundary conditions.


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