Mechanics of isolated horizons in scalar-tensor theories

被引：0
|
作者：
Song, Shupeng [1 ,2 ,3 ]
Ma, Yongge [1 ]
机构：
[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
[2] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA
[3] Penn State Univ, Phys Dept, University Pk, PA 16802 USA
来源：
EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 07期
关键词：
GRAVITY;
D O I：
10.1140/epjc/s10052-020-8207-0
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：
Based on the first-order action for scalar-tensor theories with the Immirzi parameter, the symplectic form for the spacetimes admitting a weakly isolated horizon as internal boundary is derived by the covariant phase space approach. The first law of thermodynamics for the weakly isolated horizons with rotational symmetry is obtained. It turns out that the Immirzi parameter appears in the expression of the angular momentum of isolated horizon, and the scalar field contributes to the horizon entropy.
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页数：7
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