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arXiv · 2203.13323

A Schwarzian on the Stretched Horizon

S. Carlip
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Abstract

It is well known that the Euclidean black hole action has a boundary term at the horizon proportional to the area. I show that if the horizon is replaced by a stretched horizon with appropriate boundary conditions, a new boundary term appears, described by a Schwarzian action similar to the recently discovered boundary actions in "nearly anti-de Sitter" gravity.

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S. Carlip. 2022-06-02. A Schwarzian on the Stretched Horizon. https://doi.org/10.1007/s10714-022-02940-5

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