中国物理B ›› 2001, Vol. 10 ›› Issue (3): 234-239.doi: 10.1088/1009-1963/10/3/312
王世良1, 荆继良2
Wang Shi-liang (王世良)a, Jing Ji-liang (荆继良)ab
摘要: By using Brown-York quasilocal energy theory we calculate the quasilocal energy of a stationary axisymmetic EMDA black hole and explore the universality of Martinez's conjecture in string theory. We show that the energy is positive and monotonically decreases to the ADM mass at spatial infinity, and the Martinez's conjecture, the Brown-York quasilocal energy at the outer horizon reduces to twice its irreducible mass, is still valid for stationary axisymmetric EMDA black hole. From the result we also find that the Kerr-Sen spacetime keeps up with Martinez's conjecture. This is different from the Bose-Naing result that the quasilocal energy of the Kerr-Sen spacetime does not approach the Martinez's conjecture.
中图分类号: (Quantum aspects of black holes, evaporation, thermodynamics)