No drama in two-dimensional black hole evaporation

被引：1

作者：

Barenboim, Jonathan ^{[1
]}

Frolov, Andrei V. ^{[1
]}

Kunstatter, Gabor ^{[1
,2
]}

机构：

[1] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada

[2] Univ Winnipeg, Phys Dept, Winnipeg, MB R3B 2E9, Canada

来源：

PHYSICAL REVIEW RESEARCH | 2024年 / 6卷 / 03期

基金：

加拿大自然科学与工程研究理事会; 瑞典研究理事会;

关键词：

DILATON GRAVITY; MASS INFLATION;

D O I：

10.1103/PhysRevResearch.6.L032055

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We numerically calculate the spacetime describing the formation and evaporation of a regular black hole in 2D dilaton gravity. The apparent horizons evaporate smoothly in finite time to form a compact trapped region. We nevertheless see rich dynamics: an antitrapped region forms alongside the black hole and additional compact trapped and antitrapped regions are formed by backreaction effects as the mass radiates away. The spacetime is asymptotically flat at future null infinity and is free of singularities and Cauchy horizons. These results suggest that the evaporation of regular 2D black holes is unitary.

引用

页数：4

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