中国物理B ›› 2009, Vol. 18 ›› Issue (2): 457-461.doi: 10.1088/1674-1056/18/2/014
蒋继建, 孟庆苗, 王帅
Jiang Ji-Jian(蒋继建), Meng Qing-Miao(孟庆苗)†, and Wang Shuai(王帅)
摘要: Using entropy density of Dirac field near the event horizon of a rectilinear non-uniformly accelerating Kinnersley black hole, the law for the thermal radiation of black hole is studied and the instantaneous radiation energy density is obtained. It is found that the instantaneous radiation energy density of a black hole is always proportional to the quartic of the temperature on event horizon in the same direction. That is to say, the thermal radiation of a black hole always satisfies the generalized Stefan--Boltzmann law. In addition, the derived generalized Stefan--Boltzmann coefficient is no longer a constant, but a dynamic coefficient related to the space--time metric near the event horizon and the changing rate of the event horizon in black holes.
中图分类号: (Quantum aspects of black holes, evaporation, thermodynamics)