Hamiltonian dynamics and the entropy of the gravitational field

被引：8

作者：

Rothman, T ^{[1
]}

Anninos, P ^{[1
]}

机构：

[1] UNIV ILLINOIS,NATL CTR SUPERCOMP APPLICAT,URBANA,IL 61801

来源：

PHYSICS LETTERS A | 1997年 / 224卷 / 4-5期

关键词：

D O I：

10.1016/S0375-9601(96)00841-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We take a statistical mechanics approach to investigate the function S = ln Omega as a possible ''gravitational entropy'', where Omega is the phase-space volume bounded by a Hamiltonian H. We calculate Omega for several cosmological models, attributing entropy to a lack of knowledge in the exact field configuration. We also compare our results with Penrose's C-2 hypothesis and the Bekenstein-Hawking entropy for black holes.

引用

页码：227 / 233

页数：7

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