Euclidean and canonical formulations of statistical mechanics in the presence of Killing horizons

被引:13
作者
Fursaev, DV [1 ]
机构
[1] Univ Alberta, Dept Phys, Inst Theoret Phys, Edmonton, AB T6G 2J1, Canada
[2] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia
关键词
black holes; statistical mechanics; canonical and covariant quantization;
D O I
10.1016/S0550-3213(98)00197-7
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The relation between the covariant Euclidean free energy F-E and the canonical statistical-mechanical free energy F-C in the presence of the Killing horizons is studied. F-E is determined by the covariant Euclidean effective action. The definition of F-C is related to the Hamiltonian, which is the generator of the evolution along the Killing time. At arbitrary temperatures F-E acquires additional ultraviolet divergences because of conical singularities. The divergences of F-C are different and occur since the density dn/d omega of the energy levels of the system blows up near the horizon in an infrared way, We show that there are regularizations that make it possible to remove the infrared cutoff in dn/d omega. After that the divergences of F-C become identical to the divergences of F-E. The latter property turns out to be crucial to reconcile the covariant Euclidean and the canonical formulations of the theory. The method we use is new and is based on a relation between dn/d omega and heat kernels on hyperbolic-like spaces. Our analysis includes spin-0 and spin-1/2 fields on arbitrary backgrounds. For these fields the divergences of dn/d omega, F-C and F-E are presented in the most complete form. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:447 / 468
页数:22
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