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A new rotating black hole in quintessential dark energy and its thermodynamics

A new rotating black hole in quintessential dark energy and its thermodynamics
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摘要 The spacetime metric for a rotating black hole in a quintessential field can take various forms owing to the ambiguity of the state equation for quintessential dark energy in rotating spacetime. Herein, to provide a more physical solution, the metric is determined by imposing the laws of thermodynamics of a black hole, which is typically valid in most systems. The new metric ensures the validity of the first and second laws of thermodynamics and can degenerate to the known non-rotating metric in the quintessential field. Moreover, we set an upper limit for the black hole rotation parameter, a, in our metric according to the weak energy condition(WEC). The spacetime metric for a rotating black hole in a quintessential field can take various forms owing to the ambiguity of the state equation for quintessential dark energy in rotating spacetime. Herein, to provide a more physical solution, the metric is determined by imposing the laws of thermodynamics of a black hole, which is typically valid in most systems. The new metric ensures the validity of the first and second laws of thermodynamics and can degenerate to the known non-rotating metric in the quintessential field. Moreover, we set an upper limit for the black hole rotation parameter, a, in our metric according to the weak energy condition(WEC).
出处 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2019年第11期63-68,共6页 中国科学:物理学、力学、天文学(英文版)
基金 supported by the National Natural Science Foundation of China(Grant Nos.11675139,and 11435006)supported by the Key Research Program for Undergraduate Students of Yangzhou University
关键词 ROTATING black HOLES in quintessential field THERMODYNAMICS WEAK energy condition rotating black holes in quintessential field thermodynamics weak energy condition
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