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The University of Southampton
STAG Research Centre

String Theory seminar - Alejandra Castro Seminar

Time:
13:00
Date:
1 March 2023
Venue:
Building 54, Room 8033

For more information regarding this seminar, please email Ben Withers at [email protected] .

Event details

Title: Designing Gravitational Theories via Symmetric Product Orbifolds

Abstract: I will discuss the large-N limit of two-dimensional symmetric product orbifolds. The goal is to single out which symmetric product orbifold theory could lead to a strongly coupled point in their moduli space, whose dual could be a semi-classical theory of AdS_3 gravity. To this end, we consider the symmetric product orbifold of N=(2,2) SCFT_2, and classify them according to two criteria.  The first criterion is the existence of a single-trace twisted exactly marginal operator in their moduli space.  The second criterion is a sparseness condition on the growth of light states in the elliptic genera. In this context, we encounter a strange variety: theories that obey the first criterion but the second criterion falls into a Hagedorn-like growth. I will explain why this may be counter-intuitive and discuss how it might be accounted for in conformal perturbation theory. I will also present a new infinite class of theories that obey both criteria, which are necessary conditions for their moduli spaces to contain a supergravity points.

Speaker information

Alejandra Castro , Cambridge.

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