paper

Generalized Hawking-Page transitions

arXiv:1904.07502 · doi:10.1007/JHEP08(2019)018

Abstract

We construct holographic backgrounds that are dual by the AdS/CFT correspondence to Euclidean conformal field theories on products of spheres , for conformal field theories whose dual may be approximated by classical Einstein gravity (typically these are large strongly coupled theories). For these backgrounds correspond to thermal field theories on , and Hawking and Page found that there are several possible bulk solutions, with two different topologies, that compete with each other, leading to a phase transition as the relative size of the spheres is modified. By numerically solving the Einstein equations we find similar results also for , with bulk solutions in which either one or the other sphere shrinks to zero smoothly at a minimal value of the radial coordinate, and with a first order phase transition (for ) between solutions of two different topologies as the relative radius changes. For a critical ratio of the radii there is a (sub-dominant) singular solution where both spheres shrink, and we analytically analyze the behavior near this radius. For the number of solutions grows to infinity as the critical ratio is approached.

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