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Interpolating geometries and the stretched dS2 horizon
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Abstract
We investigate dilaton-gravity models whose solutions contain a large portion of the static patch of dS2. The thermodynamic properties of these theories are considered both in the presence of a finite Dirichlet wall, as well as for asymptotically near-AdS2 boundaries. We show that under certain circumstances such geometries, including those endowed with an asymptotically near-AdS2 boundary, can be locally and even globally thermodynamically stable within particular temperature regimes. First order phase transitions reminiscent of the Hawking-Page transition are discussed. For judiciously chosen models, the near-AdS2 boundary can be viewed as a completion of the stretched cosmological dS2 horizon. We speculate on candidate microphysical models.
Springer Science and Business Media LLC
Title: Interpolating geometries and the stretched dS2 horizon
Description:
Abstract
We investigate dilaton-gravity models whose solutions contain a large portion of the static patch of dS2.
The thermodynamic properties of these theories are considered both in the presence of a finite Dirichlet wall, as well as for asymptotically near-AdS2 boundaries.
We show that under certain circumstances such geometries, including those endowed with an asymptotically near-AdS2 boundary, can be locally and even globally thermodynamically stable within particular temperature regimes.
First order phase transitions reminiscent of the Hawking-Page transition are discussed.
For judiciously chosen models, the near-AdS2 boundary can be viewed as a completion of the stretched cosmological dS2 horizon.
We speculate on candidate microphysical models.
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