Dark Energy Model with Spinor Matter and Its Quintom Scenario

Abstract

A class of dynamical dark energy models, dubbed Spinor Quintom, can be constructed by a spinor field $\psi$ with a nontraditional potential. We find that, if choosing suitable potential, this model is able to allow the equation-of-state to cross the cosmological constant boundary without introducing any ghost fields. In a further investigation, we show that this model is able to mimic a perfect fluid of Chaplygin gas with $p=-c/\rho$ during the evolution, and also realizes the Quintom scenario with its equation-of-state across -1.

20 pages, 5 figures, accepted by CQG, several references added

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Cited by in corpus (67)

• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• f(T) teleparallel gravity and cosmology
• Quintom Cosmology: Theoretical implications and observations
• Dark Energy
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• Evolution of Metric Perturbations in Quintom Bounce model
• Internal space structure generalization of the quintom cosmological scenario
• Spinor Dark Energy and Cosmological Coincidence Problem
• The past and future dynamics of quintom dark energy models
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• $f(R)$ gravity solutions for evolving wormholes
• Emergent Universe Scenario via Quintom Matter
• A cosmographic analysis of holographic dark energy models
• Implications of the possible 21-cm line excess at cosmic dawn on dynamics of interacting dark energy
• Modified Chaplygin Gas and Solvable F-essence Cosmologies
• Two-fluid evolving Lorentzian wormholes
• Reconstructing a String-Inspired Quintom Model of Dark Energy
• Cosmology of F(R) nonlinear massive gravity
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• Two-fluid atmosphere from decelerating to accelerating FRW dark energy models
• Fermionic cosmologies with Yukawa type interactions
• Big Rip and Little Rip solutions in scalar model with kinetic and Gauss Bonnet couplings
• Phantom evolving wormholes with big rip singularities
• On coincidence problem and attractor solutions in ELKO dark energy model
• Cosmology of the Spinor Emergent Universe and Scale-invariant Perturbations
• Chameleonic Generalized Brans--Dicke model and late-time acceleration
• Dynamic wormholes with particle creation mechanism
• Theoretical Aspects of Quintom Models
• Fermi-bounce cosmology and the fermion curvaton mechanism
• Four-fermion interaction from torsion as dark energy
• Reconstructing a String-Inspired Non-minimally Coupled Quintom Model
• G-essence with Yukawa Interactions
• Cosmological Evolution of a Tachyon-Quintom Model of Dark Energy
• On dark energy models of single scalar field
• Thermodynamics of Spinor Quintom
• Fermions in a Walecka-type cosmology
• On the trajectories of null and timelike geodesics in different wormhole geometries
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• Spinor model of a perfect fluid and their applications in Bianchi type-I and FRW models
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• Density perturbation in an interacting holographic dark energy model
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• Reconstruction of f-essence and fermionic Chaplygin gas models of dark energy
• Reconstructing FHDE with Scalar and Gauge Fields
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• On a class of scaling FRW cosmological models
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