Back to Search Start Over

Thermodynamics in Loop Quantum Cosmology

Authors :
Li, Li-Fang
Zhu, Jian-Yang
Source :
Adv.High Energy Phys.2009:905705,2009
Publication Year :
2008

Abstract

Loop quantum cosmology (LQC) is very powerful to deal with the behavior of early universe. And the effective loop quantum cosmology gives a successful description of the universe in the semiclassical region. We consider the apparent horizon of the Friedmann-Robertson-Walker universe as a thermodynamical system and investigate the thermodynamics of LQC in the semiclassical region. The effective density and effective pressure in the modified Friedmann equation from LQC not only determine the evolution of the universe in LQC scenario but are actually also found to be the thermodynamic quantities. This result comes from the energy definition in cosmology (the Misner-Sharp gravitational energy) and is consistent with thermodynamic laws. We prove that within the framework of loop quantum cosmology, the elementary equation of equilibrium thermodynamics is still valid.<br />Comment: 4 pages

Details

Database :
arXiv
Journal :
Adv.High Energy Phys.2009:905705,2009
Publication Type :
Report
Accession number :
edsarx.0812.3544
Document Type :
Working Paper
Full Text :
https://doi.org/10.1155/2009/905705