540 citations
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- Aigen Li3
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6 papers · 1 filter
Thermal nature of de Sitter spacetime and spontaneous excitation of atoms
Zhiying Zhu, Hongwei Yu
We consider, in de Sitter spacetime, both freely falling and static two-level atoms in interaction with a conformally coupled massless scalar field in the de Sitter-invariant vacuu…
Quasinormal modes in the background of charged Kaluza-Klein black hole with squashed horizons
Xi He, Songbai-Chen, Bin Wang +2
We study the scalar perturbation in the background of the charged Kaluza-Klein black holes with squashed horizons. We find that the position of infinite discontinuities of the heat…
Greybody Factors for Rotating Black Holes on Codimension-2 Branes
Songbai Chen, Bin Wang, Ru-Keng Su +1
We study the absorption probability and Hawking radiation of the scalar field in the rotating black holes on codimension-2 branes. We find that finite brane tension modifies the st…
Hawking radiation in a Rotating Kaluza-Klein Black Hole with Squashed Horizons
Songbai Chen, Bin Wang, Ru-Keng Su
We explore the signature of the extra dimension in the Hawking radiation in a rotating Kaluza-Klein black hole with squashed horizons. Comparing with the spherical case, we find th…
Relationship between Hawking radiation from black holes and spontaneous excitation of atoms
Hongwei Yu, Wenting Zhou
Using the formalism that separates the contributions of vacuum fluctuations and radiation reaction to the rate of change of the mean atomic energy, we show that a two-level atom in…
Wave dynamics of a six-dimensional black hole localized on a tensional three-brane
Songbai Chen, Bin Wang, Ru-Keng Su
We study the quasinormal modes and the late-time tail behavior of scalar perturbation in the background of a black hole localized on a tensional three-brane in a world with two lar…