عنوان مجله
|
EUROPEAN PHYSICAL JOURNAL C
|
چکیده
|
Using Tsallis statistics and its relation with
Boltzmann entropy, the Tsallis entropy content of black holes
is achieved, a result in full agreement with a recent study
(Mejrhit and Ennadifi in Phys Lett B 794:24, 2019). In addi-
tion, employing Kaniadakis statistics and its relation with that
of Tsallis, the Kaniadakis entropy of black holes is obtained.
The Sharma-Mittal and Rényi entropy contents of black holes
are also addressed by employing their relations with Tsallis
entropy. Thereinafter, relying on the holographic dark energy
hypothesis and the obtained entropies, two new holographic
dark energy models are introduced and their implications on
the dynamics of a flat FRW universe are studied when there
is also a pressureless fluid in background. In our setup, the
apparent horizon is considered as the IR cutoff, and there is
not any mutual interaction between the cosmic fluids. The
results indicate that the obtained cosmological models have
(i) notable powers to describe the cosmic evolution from the
matter-dominated era to the current accelerating universe,
and (ii) suitable predictions for the universe age
|