Phase transition in JT gravity and T(T)over-bar deformation

被引：0

作者：

Kim, Kyung Kiu ^{[1
]}

Baek, Jong-Hyun ^{[1
]}

Seo, Yunseok ^{[2
,3
]}

机构：

[1] Sejong Univ, Dept Phys & Astron, Seoul 05006, South Korea

[2] Gwangju Inst Sci & Technol, Sch Phys & Chem, Gwangju 61005, South Korea

[3] Kookmin Univ, Sch Humanities Art & Technol, Seoul 02707, South Korea

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 02期

关键词：

2D Gravity; Black Holes;

D O I：

10.1007/JHEP02(2021)224

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this paper we study a black hole phase transition in a generalized JT gravity noticed in arXiv:2006.03494. We investigate the effect of the phase transition on the Euclidean geodesic and holographic two-point function in models with dilaton potential which interpolates two ordinary JT gravities with different cosmological constants. It is noted that there exists a closed geodesic with a new scale at low temperature phase when the potential has a locally negative region. This scale causes several peaks in the two-point function. We also comment on the phase transition of charged black holes. We then consider coupling generalized JT gravity to a matter and study its relation to a T (T) over bar deformation of CFT at the classical level. We find the deformation parameter as a function of the dilaton and provide examples showing Janus-type couplings.

引用

页数：24

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