Open AccessCosmology of f-essence with inhomogeneous viscous fluid
Author(s) -
Shynaray Myrzakul,
M. B. Arzimbetova,
Manat Imankul,
Ratbay Myrzakulov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1391/1/012167
Subject(s) - physics , viscous liquid , cosmology , universe , metric expansion of space , classical mechanics , theoretical physics , field (mathematics) , current (fluid) , perfect fluid , cosmological model , mechanics , dark energy , mathematics , quantum mechanics , thermodynamics , pure mathematics
F-essence is a generalized form of fermion fields. In this paper, we study the dynamics of f-essence with a viscous fluid in the flat Friedmann-Robertson-Walker universe. Various types of viscous fluids are analyzed and the possibility of reproducing the current accelerating expansion of the Universe is investigated. The cosmological parameters of this model are determined. It is shown that accelerated expansion can also be obtained with a viscous fluid of the fermion field, as in the case of non-interacting perfect fluid considered in most modern models of accelerated expansion of the Universe.