The cosmological model with a wormhole and Hawking temperature near apparent horizon

被引：9
|
作者：
Kim, Sung-Won [1 ]
机构：
[1] Ewha Womans Univ, Dept Sci Educ, Seoul 03760, South Korea
来源：
PHYSICS LETTERS B | 2018年 / 780卷
基金：
新加坡国家研究基金会;
关键词：
BLACK-HOLE;
D O I：
10.1016/j.physletb.2018.03.005
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, a cosmological model with an isotropic form of the Morris-Thorne type wormhole was derived in a similar way to the McVittie solution to the black hole in the expanding universe. By solving Einstein's field equation with plausible matter distribution, we found the exact solution of the wormhole embedded in Friedmann-Lemaitre-Robertson-Walker universe. We also found the apparent cosmological horizons from the redefined metric and analyzed the geometric natures, including causal and dynamic structures. The Hawking temperature for thermal radiation was obtained by the WKB approximation using the Hamilton-Jacobi equation and Hamilton's equation, near the apparent cosmological horizon. (C) 2018 The Author. Published by Elsevier B.V.
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页码：174 / 180
页数：7
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