\Gamma -sign in entropic cosmology
Samuel Lepe, Francisco Pe\~na

TL;DR
This paper explores entropic cosmology by analyzing the equation of state of the cosmic fluid, showing how redefinitions and quantum corrections influence cosmic evolution and thermal equilibrium.
Contribution
It introduces a framework for understanding cosmic evolution through bare and effective equations of state, including quantum corrections and their impact on thermal equilibrium.
Findings
Redefinition of the mbda-parameter recovers standard cosmic evolution.
Universe with dust or cosmological constant evolves in thermal equilibrium.
Quantum corrections allow only the cosmological constant to drive thermal equilibrium.
Abstract
We study a cosmology by considering entropic issues. We make a bare/effective description of the equation of state of the cosmic fluid through a bare (\omega)/effective (\omega_eff) conservation equation. In the bare case, where we have a non conserved equation of state for the cosmic fluid, we describe the change in the sign of the inhomogeneus term at different times of the cosmic evolution. We show that by a redefinition of the adiabatic \omega -parameter we can recover the usual scheme for the cosmic evolution. In the effective case we show also that if the evolution is driven by dust or cosmological constant, the universe evolves on the thermal equilibrium. Additionally, by incorporating a quantum correction only cosmological constant can drive an evolution on thermal equilibrium.
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Taxonomy
TopicsCosmology and Gravitation Theories · Advanced Thermodynamics and Statistical Mechanics · Galaxies: Formation, Evolution, Phenomena
