Meeting PRIN "String Theory as a bridge between Gauge Theories and Quantum Gravity"

Session

Gong Show 1

22 Feb 2024, 15:30

Room 005 (SISSA)

15. Wilson loop correlators at strong coupling in \mathcal{N}=2 quiver gauge theories

Paolo Vallarino (Università di Torino)

22/02/2024, 15:30

In this talk I will discuss recent developments in the study of Wilson loop correlators in four-dimensional \mathcal{N} = 2 superconformal gauge theories. Using supersymmetric localization, it is possible to map the computation of these observables to an interacting matrix model and obtain expressions for these correlators in terms of Fredholm determinants of a Bessel operator, that are valid...

16. Black hole spectroscopy in Einstein-Maxwell-scalar theory

Marco Melis (Istituto Nazionale di Fisica Nucleare)

22/02/2024, 15:45

Since the first discovery of gravitational waves resulting from a binary black hole coalescence, the study of the post-merger phase, known as ringdown, has proven to be one of the most promising tools for testing gravity and exploring fascinating extensions of general relativity. In this talk I will discuss one of these extensions, called Einstein-Maxwell-scalar theory, where a scalar field is...

17. Analytic computation of black hole quasinormal modes

Paolo Arnaudo (SISSA)

22/02/2024, 16:00

In this talk, we describe two methods that provide the quantization condition for the quasinormal mode frequencies in Schwarzschild (anti-)de Sitter black holes in four dimensions. The first consists of using the Nekrasov-Shatashvili functions, or, equivalently, the classical Virasoro conformal blocks, to obtain the connection coefficients for the differential equation encoding the spectral...

18. Open-Closed Duality in String Field Theory

Alberto Ruffino (Istituto Nazionale di Fisica Nucleare)

22/02/2024, 16:15

We approach the problem of open-closed duality through the complete perspective of string field theory (SFT) and we provide a description of the backreaction of a large N stack of D-branes as a new closed string background without D-branes. To achieve this, we first of all give a new convenient formulation of open-closed SFT based on a single open-closed nilpotent structure which captures the...

19. Correlators and OPE coefficients in Argyres-Douglas Theories

Andrea Cipriani (Roma Tor Vergata)

22/02/2024, 16:30

I will discuss the computation of correlators and observable quantities, in particular OPE coefficients, in Argyres-Douglas theories, that are 4-dimensional N = 2 superconformal field theories, intrinsically strongly coupled and without a Lagrangian description. After a quick presentation on these theories and the motivation of this study, I will recall some results for extremal correlators...