Gravitational entropy in cosmological models

被引：13
|
作者：
Pelavas, Nicos [1 ]
Coley, Alan [1 ]
机构：
[1] Dalhousie Univ, Dept Math & Stat, Halifax, NS, Canada
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2006年 / 45卷 / 07期
基金：
加拿大自然科学与工程研究理事会;
关键词：
gravitational entropy; Szekeres; Bianchi VI (h); Bel-Robinson;
D O I：
10.1007/s10773-006-9124-1
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We discuss whether an appropriately defined dimensionless scalar function might be an acceptable candidate for the gravitational entropy, by explicitly considering Szekeres and Bianchi type VI (h) models that admit an isotropic singularity. We also briefly discuss other possible gravitational entropy functions, including an appropriate measure of the velocity dependent Bel-Robinson tensor.
引用
收藏
页码：1301 / 1309
页数：9
相关论文
共 50 条
  • [1] Gravitational Entropy in Cosmological Models
    Nicos Pelavas
    Alan Coley
    [J]. International Journal of Theoretical Physics, 2006, 45 : 1258 - 1266
  • [2] An investigation on gravitational entropy of cosmological models
    Chakraborty, Samarjit
    Guha, Sarbari
    Goswami, Rituparno
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2021, 30 (07):
  • [3] COSMOLOGICAL MODELS AND ENTROPY
    RAYCHAUDHURI, AK
    [J]. CLASSICAL AND QUANTUM GRAVITY, 1990, 7 (02) : 265 - 267
  • [4] Cosmological models with generalised gravitational and cosmological constants
    Singh, N. Ibotombi
    Singh, S. Surendra
    Devi, S. Romaleima
    Devi, A. Sumati
    [J]. ASTROPHYSICS AND SPACE SCIENCE, 2009, 324 (01) : 67 - 70
  • [5] Cosmological models with generalised gravitational and cosmological constants
    N. Ibotombi Singh
    S. Surendra Singh
    S. Romaleima Devi
    A. Sumati Devi
    [J]. Astrophysics and Space Science, 2009, 324
  • [6] Cosmological models with the variable gravitational and cosmological constants
    Singh, N. Ibotombi
    Sorokhaibam, Anita
    [J]. ASTROPHYSICS AND SPACE SCIENCE, 2007, 310 (1-2) : 131 - 134
  • [7] COSMOLOGICAL MODELS WITH VARIABLE GRAVITATIONAL AND COSMOLOGICAL CONSTANTS
    BERMAN, MS
    [J]. GENERAL RELATIVITY AND GRAVITATION, 1991, 23 (04) : 465 - 469
  • [8] Cosmological models with the variable gravitational and cosmological constants
    N. Ibotombi Singh
    Anita Sorokhaibam
    [J]. Astrophysics and Space Science, 2007, 310 : 131 - 134
  • [9] Gravitational entropy and the cosmological no-hair conjecture
    Bolejko, Krzysztof
    [J]. PHYSICAL REVIEW D, 2018, 97 (08)
  • [10] Cosmological models with variable cosmological and gravitational ''constants'' and bulk viscous models
    Arbab, AI
    [J]. GENERAL RELATIVITY AND GRAVITATION, 1997, 29 (01) : 61 - 74
12345