The global monopole spacetime and its topological charge

doi:10.1088/1674-1056/27/3/030401

中国物理B ›› 2018, Vol. 27 ›› Issue (3): 30401-030401.doi: 10.1088/1674-1056/27/3/030401

The global monopole spacetime and its topological charge

Hongwei Tan(谭鸿威), Jinbo Yang(杨锦波), Jingyi Zhang(张靖仪), Tangmei He(何唐梅)

Center for Astrophysics, Guangzhou University, Guangzhou 510006, China

收稿日期:2017-10-16 修回日期:2017-11-22 出版日期:2018-03-05 发布日期:2018-03-05
通讯作者: Jingyi Zhang E-mail:zhangjy@gzhu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11273009 and 11303006).{These authors contributed equally to this work.

The global monopole spacetime and its topological charge

Hongwei Tan(谭鸿威), Jinbo Yang(杨锦波), Jingyi Zhang(张靖仪), Tangmei He(何唐梅)

Center for Astrophysics, Guangzhou University, Guangzhou 510006, China

Received:2017-10-16 Revised:2017-11-22 Online:2018-03-05 Published:2018-03-05
Contact: Jingyi Zhang E-mail:zhangjy@gzhu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11273009 and 11303006).{These authors contributed equally to this work.

摘要/Abstract

摘要： We show that the global monopole spacetime is one of the exact solutions of the Einstein equations by treating the matter field as a non-linear sigma model, without the weak field approximation applied in the original derivation by Barriola and Vilenkin. Furthermore, we find the physical origin of the topological charge in the global monopole spacetime. Finally, we generalize the proposal which generates spacetime from thermodynamical laws to the case of spacetime with global monopole charge.

关键词: global monopole spacetime, exact solution, topological charge, thermodynamics

Abstract: We show that the global monopole spacetime is one of the exact solutions of the Einstein equations by treating the matter field as a non-linear sigma model, without the weak field approximation applied in the original derivation by Barriola and Vilenkin. Furthermore, we find the physical origin of the topological charge in the global monopole spacetime. Finally, we generalize the proposal which generates spacetime from thermodynamical laws to the case of spacetime with global monopole charge.

Key words: global monopole spacetime, exact solution, topological charge, thermodynamics

中图分类号: (Classical general relativity)

04.20.-q

04.20.Jb (Exact solutions)

谭鸿威, 杨锦波, 张靖仪, 何唐梅. The global monopole spacetime and its topological charge[J]. 中国物理B, 2018, 27(3): 30401-030401.

Hongwei Tan(谭鸿威), Jinbo Yang(杨锦波), Jingyi Zhang(张靖仪), Tangmei He(何唐梅). The global monopole spacetime and its topological charge[J]. Chin. Phys. B, 2018, 27(3): 30401-030401.

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The global monopole spacetime and its topological charge

The global monopole spacetime and its topological charge

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