Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.015 seconds
AbstractAbstract
[en] In this work, we study some thermodynamical aspects associated with torsion in a flat FLRW spacetime cosmic evolution. By implementing two Ansatze for the torsion term, we find that the model admits a phantom regime or a quintessence behavior. This scheme differs from the ΛCDM model at the thermodynamical level. The resulting cosmic expansion is not adiabatic, the fulfillment of the second law of thermodynamics requires a positive torsion term, and the temperature of the cosmic fluid is always positive. The entropy of the torsion phantom scenario is negative, but introducing chemical potential solves this issue. For a Dirac-Milne type Universe, the torsion leads to a growing behavior for the temperature of the fluid but has no incidence on the rate of expansion.
Primary Subject
Source
Available from: http://dx.doi.org/10.1140/epjc/s10052-020-8128-y; AID: 559
Record Type
Journal Article
Journal
European Physical Journal. C, Particles and Fields (Online); ISSN 1434-6052;
; CODEN EPCFFB; v. 80(6); p. 1-9

Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue