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arXiv · 2611.08587

AdS to dS Flows Dual to Pseudo-Hermitian Theories

José M. Begines·Antón F. Faedo·Carlos Hoyos·Daniele Musso
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Abstract

We construct generalizations of ''centaur" geometries in more than two dimensions as solutions of Einstein gravity coupled to a ghost scalar. The solutions interpolate between asymptotically anti-de Sitter and asymptotically de Sitter spacetimes, with the two asymptotic regions separated by a horizon. A holographic interpretation is that they are dual to pseudo-Hermitian theories obtained from the continuation of real couplings and operators to purely imaginary values. One family of solutions is obtained from a supergravity theory that is a consistent truncation with a known embedding in string theory. We study the thermodynamic and linear stability of the solutions, and determine the uplift of the supergravity solutions to eleven dimensions.

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José M. Begines, Antón F. Faedo, Carlos Hoyos, Daniele Musso. 2026-11-05. AdS to dS Flows Dual to Pseudo-Hermitian Theories. https://arxiv.org/abs/2611.08587

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