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PIRSA:15080059

Gravity Dual of Quantum Information Metric

APA

Takayanagi, T. (2015). Gravity Dual of Quantum Information Metric. Perimeter Institute for Theoretical Physics. https://pirsa.org/15080059

Tadashi Takayanagi Yukawa Institute for Theoretical Physics

Talk numberPIRSA:15080059
Source RepositoryPIRSA

Abstract

We study a quantum information metric (or fidelity susceptibility) in conformal field theories with respect to a small perturbation by a primary operator. We argue that its gravity dual is approximately given by a volume of maximal time slice in an AdS spacetime when the perturbation is exactly marginal. We confirm our claim in several examples.