Volume 131, Number 5, September 2020
|Number of page(s)||7|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||22 September 2020|
Entropic considerations on the Universe and Universe-black hole systems
1 Department of Physics, Azarbaijan Shahid Madani University -53714-161 Tabriz, Iran
2 Department of Mathematics, Faculty of Sciences, Bilkent University - 06800 Ankara, Turkey
Received: 13 July 2020
Accepted: 21 August 2020
We study the entropic considerations on the Universe system and the Universe-black hole system, filled by cosmological constant or exotic quintessence-like and phantom-like fields having negative pressure, using their relevant entropic bounds. It turns out that for both systems these considerations single out the cosmological constant, among the negative pressure candidate fields, as the viable cosmological field.
PACS: 98.80.Jk – Mathematical and relativistic aspects of cosmology / 95.30.Sf – Relativity and gravitation
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