Deformations of the Almheiri-Polchinski model
Abstract
We study deformations of the Almheiri-Polchinski (AP) model by employing the Yang-Baxter deformation technique. The general deformed AdS2 metric becomes a solution of a deformed AP model. In particular, the dilaton potential is deformed from a simple quadratic form to a hyperbolic function-type potential similarly to integrable deformations. A specific solution is a deformed black hole solution. Because the deformation makes the spacetime structure around the boundary change drastically and a new naked singularity appears, the holographic interpretation is far from trivial. The Hawking temperature is the same as the undeformed case but the Bekenstein-Hawking entropy is modified due to the deformation. This entropy can also be reproduced by evaluating the renormalized stress tensor with an appropriate counter-term on the regularized screen close to the singularity.
- Publication:
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Journal of High Energy Physics
- Pub Date:
- March 2017
- DOI:
- 10.1007/JHEP03(2017)173
- arXiv:
- arXiv:1701.06340
- Bibcode:
- 2017JHEP...03..173K
- Keywords:
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- 2D Gravity;
- Integrable Field Theories;
- AdS-CFT Correspondence;
- Black Holes;
- High Energy Physics - Theory;
- General Relativity and Quantum Cosmology
- E-Print:
- 26 pages, 2 figures, v2: further clarifications and references added