Do static atoms outside a Schwarzschild black hole spontaneously excite?

	Do static atoms outside a Schwarzschild black hole spontaneously excite?
其他题名	论文其他题名
	Yu H. W.; Zhou W. T.
	2007
发表期刊	Physical Review D
ISSN	1550-7998
卷号	76 期号:4
摘要	The spontaneous excitation of a two-level atom held static outside a four dimensional Schwarzschild black hole and in interaction with a massless scalar field in the Boulware, Unruh, and Hartle-Hawking vacuums is investigated, and the contributions of the vacuum fluctuations and radiation reaction to the rate of change of the mean atomic energy are calculated separately. We find that, for the Boulware vacuum, the spontaneous excitation does not occur and the ground-state atoms are stable, while the spontaneous emission rate for excited atoms in the Boulware vacuum, which is well behaved at the event horizon, is not the same as that in the usual Minkowski vacuum. However, for both the Unruh vacuum and the Hartle-Hawking vacuum, our results show that the atom would spontaneously excite, as if there were an outgoing thermal flux of radiation or as if it were in a thermal bath of radiation at a proper temperature which reduces to the Hawking temperature in the spatial asymptotic region, depending on whether the scalar field is in the Unruh or Hartle-Hawking vacuum.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25722
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Yu H. W.,Zhou W. T.. Do static atoms outside a Schwarzschild black hole spontaneously excite?[J]. Physical Review D,2007,76(4).
APA	Yu H. W.,&Zhou W. T..(2007).Do static atoms outside a Schwarzschild black hole spontaneously excite?.Physical Review D,76(4).
MLA	Yu H. W.,et al."Do static atoms outside a Schwarzschild black hole spontaneously excite?".Physical Review D 76.4(2007).

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