Information metric and Euclidean Janus correspondence

Abstract

We consider the quantum information metric of a family of CFTs perturbed by an exactly marginal operator, which has the dual description of the Euclidean Janus geometries. We first clarify its two dimensional case dual to the three dimensional Janus geometry, which recently appeared in arXiv:1507.07555. We generalize this correspondence to higher dimensions and get a precise agreement between the both sides. We also show that the mixed-state information metric of the same family of CFTs has a dual description in the Euclidean version of the Janus time-dependent black hole geometry.

12 pages, 1 figure, references added, further typos corrected, correction included

References in corpus (4)

• Holographic Complexity
• Surface/State Correspondence as a Generalized Holography
• cMERA as Surface/State Correspondence in AdS/CFT
• Gravity Dual of Quantum Information Metric

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