Cosmological Constant in the Thermodynamic Models of Gravity

Download PDF (501.2 KB) PP. 163 - 165 Pub. Date: December 1, 2017

DOI: 10.22606/tp.2017.24002

Author(s)

Merab Gogberashvili^*
Javakhishvili Tbilisi State University, 3 Chavchavadze Avenue, Tbilisi 0179, Georgia & Andronikashvili Institute of Physics, 6 Tamarashvili Street, Tbilisi 0177, Georgia
Ucha Chutkerashvili
Javakhishvili Tbilisi State University, 3 Chavchavadze Avenue, Tbilisi 0179, Georgia

Abstract

Within thermodynamic models of gravity, where the universe is considered as a finite ensemble of quantum particles, cosmological constant in the Einstein equations appears as a constant of integration. Then it can be bounded using Karolyhazy uncertainty relation applied for horizon distances, as the amount of information in principle accessible to an external observer.

Keywords

Cosmological constant, thermodynamic gravity, Karolyhazy uncertainty relation.

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Theoretical Physics