Black hole singularities across phase transitions

Abstract

We study the behavior of black hole singularities across the Hawking-Page phase transitions, uncovering possible connections between the physics inside and outside the horizon. We focus on the case of spacelike singularities in Einstein-scalar theory which are of the Kasner form. We find that the Kasner exponents are continuous and non-differentiable during the second order phase transitions, while discontinuous in the first order phase transitions. We give some arguments on the universality of this behavior. We also discuss possible observables in the dual field theory which encode the Kasner exponents.

arXiv comment23 pages, 8 figures. v2: version to appear in JHEP

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• AdS Black Holes with a Bouncing Interior
• The generalized uncertainty principle impact onto the black hole thermodynamic phase transition