Compatibility between the scalar field models of tachyon, -essence and quintessence in gravity
arXiv:2011.07321 · doi:10.1016/j.newast.2020.101478
Abstract
We investigate the behavior of the scalar field in gravity (Harko et al., Phys. Rev. D 84, 024020, 2011) inside the structure of a flat FRW cosmological model, where and have their usual meaning. The deterministic solution of FEs has been settled by considering the scale factor , where and are positive constant. Here we utilize three ongoing imperatives ( and ) from SNe Ia Union observation (Cunha, Phys. Rev. D 79, 047301, 2009); ( and ) from Type Ia Supernova (SNIa) observation in joined with (BAO) and (CMB) observation (Giostri et al., J. Cosmol. Astropart. Phys. 03, 027, 2012); and ( and from (OHD+JLA) observation (Yu et al., Astrophys. J. 856, 3, 2018). We have measured and graphed several cosmological parameters and found that these findings are appropriate in comparison with the universe's physical and kinematic properties and also compatible with ongoing observations. The correspondence between the scalar field models of tachyon, k-essence, and quintessence is investigated by us. Our model explains the potentials and the dynamics of the scalar fields in the FRW universe. The reconstructed potential is very sensible and has a scaling arrangement. Subsequently, our study supports recent observations.
arXiv comment18 pages, 16 figures, 1 table
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