TH String Theory Seminar
# Semiclassical analysis of finite cut-off JT gravity on a disk

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Europe/Zurich

4/2-037 - TH meeting room (CERN)

Description

In this talk I will present the computation of the partition function of finite cut-off JT gravity (with positive, zero or negative curvature) defined on a disk and coupled to conformal matter with central charge c. The analysis is done in a regime where c is a large negative number, while the magnitude of the cosmological constant scales linearly with |c| and the length of the boundary of the disk is kept finite. In this regime, the gravitational path integral is dominated by a smooth geometry corresponding to a saddle point of the action. By systematically taking into account the quantum fluctuations about this saddle point, one can obtain a perturbative expansion of the partition function in powers of 1/|c|. I will present the results for the leading and the first subleading terms in this expansion.

Zoom Meeting ID

61053603623
Host

Elena Gianolio
Alternative hosts

Ruben Monten, Ethan Martin Torres, Pascal Pignereau
Passcode

87794299
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