Absorption cross section and Hawking radiation of the electromagnetic field with Weyl corrections
Absorption cross section and Hawking radiation of the electromagnetic field with Weyl corrections
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DOI：
10.1016/j.physletb.2013.12.018
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发表时间：
2013-12
影响因子：
4.4
通讯作者：
Hao Liao;Songbai Chen;Jiliang Jing
中科院分区：
文献类型：
--
作者：
Hao Liao;Songbai Chen;Jiliang Jing
本文研究了四维Schwarzschild黑洞时空背景下的电磁场的吸收截面和具有Weyl修正的Hawking辐射。结果表明，吸收截面和Hawking辐射的性质不仅依赖于Weyl修正参数，而且依赖于电磁场的宇称，这与四维时空中通常的无Weyl修正电磁场的性质有很大的不同.随着Weyl修正参数的增大，在奇宇称电磁场下，Hawking辐射的吸收几率、吸收截面、功率发射谱和光度随Weyl修正参数的增大而减小，在偶宇称电磁场下，Hawking辐射的吸收几率、吸收截面、功率发射谱和光度随Weyl修正参数的增大而增大。
We have investigated the absorption cross section and the Hawking radiation of electromagnetic field with Weyl correction in the background of a four-dimensional Schwarzschild black hole spacetime. Our results show that the properties of the absorption cross section and the Hawking radiation depend not only on the Weyl correction parameter, but also on the parity of the electromagnetic field, which is quite different from those of the usual electromagnetic field without Weyl correction in the four-dimensional spacetime. With increase of Weyl correction parameter, the absorption probability, the absorption cross section, the power emission spectra and the luminosity of Hawking radiation decreases with Weyl correction parameter for the odd-parity electromagnetic field and increases with the even-parity electromagnetic field.