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(135 citation statements)

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“…A similar course was taken with regard to cosmological models in f (R) gravity in order to see which features of the Friedmann universes of GR were retained in these larger theories [6]. One framework that has gained momentum in recent years is that of teleparallel gravity (TEGR) [7,8] and its modification, the f (T ) teleparallel theory [9][10][11]. This theory of gravity provides a different perspective on the mechanism of gravity.…”

confidence: 99%

“…A similar course was taken with regard to cosmological models in f (R) gravity in order to see which features of the Friedmann universes of GR were retained in these larger theories [6]. One framework that has gained momentum in recent years is that of teleparallel gravity (TEGR) [7,8] and its modification, the f (T ) teleparallel theory [9][10][11]. This theory of gravity provides a different perspective on the mechanism of gravity.…”

confidence: 99%

“…The particle approximation for Dirac fields, however, is not self-consistent [4]. The spin-fluid description also violates the cosmological principle [14]. In this paper, we use the Dirac form of the spin tensor for fermionic matter, s ijk = s [ijk] [2,6,12], which follows directly from the Dirac Lagrangian and is consistent with the cosmological principle [15].…”

mentioning

confidence: 99%

“…Moreover, in order to preserve the FRW metric structure in a standard cosmological setup, one requires the tensor mode Q µνσ of torsion to vanish altogether, and the vector modes T µ and A µ to have only their temporal components existent. 30,59 Also since the torsion field is generally taken to be massless, 24,32 one expects the scalar field source φ, of its trace mode T µ to be massless as well. However, the pseudotrace mode of torsion, A µ , may effectively lead to a scalar field potential…”

confidence: 99%