Thermodynamics in f(R) gravity in the Palatini formalism

被引：49
|
作者：
Bamba, Kazuharu [1 ]
Geng, Chao-Qiang [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2010年 / 06期
关键词：
modified gravity; quantum black holes; dark energy theory; PROBE WMAP OBSERVATIONS; BLACK-HOLES; COSMOLOGICAL CONSTANT; APPARENT HORIZON; DARK ENERGY; 1ST LAW; EQUATIONS; VIABILITY; DYNAMICS; UNIVERSE;
D O I：
10.1088/1475-7516/2010/06/014
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate thermodynamics of the apparent horizon in f(R) gravity in the Palatini formalism with non-equilibrium and equilibrium descriptions. We demonstrate that it is more transparent to understand the horizon entropy in the equilibrium framework than that in the non-equilibrium one. Furthermore, we show that the second law of thermodynamics can be explicitly verified in both phantom and non-phantom phases for the same temperature of the universe outside and inside the apparent horizon.
引用
收藏
页数：20
相关论文
共 50 条
  • [31] f(R)-Einstein-Palatini formalism and smooth branes
    P. Michel L. T. da Silva
    J. M. Hoff da Silva
    [J]. The European Physical Journal Plus, 132
  • [32] Reexamination of polytropic spheres in Palatini f(R) gravity
    Olmo, Gonzalo J.
    [J]. PHYSICAL REVIEW D, 2008, 78 (10):
  • [33] Generalized virial theorem in Palatini f(R) gravity
    Sefiedgar, A. S.
    Atazadeh, K.
    Sepangi, H. R.
    [J]. PHYSICAL REVIEW D, 2009, 80 (06):
  • [34] Hyperbolically symmetric sources in Palatini f(R) gravity
    M. Z. Bhatti
    Z. Yousaf
    Z. Tariq
    [J]. The European Physical Journal C, 2021, 81
  • [35] Cosmographic constraints on a class of Palatini f(R) gravity
    Pires, N.
    Santos, J.
    Alcaniz, J. S.
    [J]. PHYSICAL REVIEW D, 2010, 82 (06):
  • [36] Wormholes and nonsingular spacetimes in Palatini f(R) gravity
    Bambi, Cosimo
    Cardenas-Avendano, Alejandro
    Olmo, Gonzalo J.
    Rubiera-Garcia, D.
    [J]. PHYSICAL REVIEW D, 2016, 93 (06)
  • [37] Interior spacetimes of stars in Palatini f(R) gravity
    Kainulainen, Kimmo
    Reijonen, Vappu
    Sunhede, Daniel
    [J]. PHYSICAL REVIEW D, 2007, 76 (04):
  • [38] Hyperbolically symmetric sources in Palatini f(R) gravity
    Bhatti, M. Z.
    Yousaf, Z.
    Tariq, Z.
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2021, 81 (12):
  • [39] Dynamics of axial geometry in Palatini f(R) gravity
    Bhatti, M. Z.
    Yousaf, Z.
    Tariq, Z.
    [J]. INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2023, 20 (01)
  • [40] Thick brane in f(R) gravity with Palatini dynamics
    D. Bazeia
    L. Losano
    R. Menezes
    Gonzalo J. Olmo
    D. Rubiera-Garcia
    [J]. The European Physical Journal C, 2015, 75
12345