THERMODYNAMICS IN KALUZA–KLEIN UNIVERSE
2013 ◽
Vol 28
(17)
◽
pp. 1350072
◽
Keyword(s):
This paper is devoted to check the validity of laws of thermodynamics for Kaluza–Klein universe in the state of thermal equilibrium, composed of dark matter and dark energy. The generalized holographic dark energy and generalized Ricci dark energy models are considered here. It is proved that the first and generalized second law of thermodynamics are valid on the apparent horizon for both of these models. Further, we take a horizon of radius L with modified holographic or Ricci dark energy. We conclude that these models do not obey the first and generalized second law of thermodynamics on the horizon of fixed radius L for a specific range of model parameters.
2018 ◽
Vol 33
(38)
◽
pp. 1850225
◽
2012 ◽
Vol 27
(33)
◽
pp. 1250187
◽
2010 ◽
Vol 19
(07)
◽
pp. 1205-1215
◽
Keyword(s):
2010 ◽
Vol 688
(2-3)
◽
pp. 125-128
◽
Keyword(s):
2018 ◽
Vol 15
(03)
◽
pp. 1850033
Keyword(s):
2010 ◽
Vol 25
(36)
◽
pp. 3069-3079
◽
2019 ◽
Vol 35
(04)
◽
pp. 1950360
◽