中国物理B ›› 2009, Vol. 18 ›› Issue (2): 451-456.doi: 10.1088/1674-1056/18/2/013
蒋继建, 李传安
Jiang Ji-Jian(蒋继建) and Li Chuan-An(李传安)†
摘要: By using the new equation of state density derived from the generalized uncertainty relation, the number of the quantum states near event horizon is obtained, with which then the information entropy of static spherically symmetric black holes has been discussed. It is found that the divergent integral of quantum states near the event horizon can be naturally avoided if using the new equation of state density without introducing the ultraviolet cut-off. The information entropy of black holes can be obtained precisely by the residue theorem, which is shown to be proportional to the horizon area. The information entropy of black holes obtained agrees with the Bechenstein--Hawking entropy when the suitable cutoff factor is adopted.
中图分类号: (Quantum aspects of black holes, evaporation, thermodynamics)