Thermodynamic aspects of of entropic cosmology with viscosity
Peer reviewed, Journal article
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Original versionInternational Journal of Modern Physics D. 2021, 30 (2), . 10.1142/S0218271821500085
We describe the evolution of the early and late universe from thermodynamic considerations, using the generalized nonextensive Tsallis entropy with a variable exponent. A new element in our analysis is the inclusion of a bulk viscosity in the description of the cosmic fluid. Using the generalized Friedmann equation, a description of the early and the late universe is obtained.