Cosmological Bardeen-Cooper-Schrieffer condensate as dark energy

Abstract

We argue that the occurrence of late-time acceleration can conveniently be described by first-order general relativity covariantly coupled to fermions. Dark energy arises as a Bardeen-Cooper-Schrieffer condensate of fermions which forms in the early universe. At late times, the gap and chemical potential evolve to have an equation of state with effective negative pressure, thus naturally leading to acceleration.

17 pages, 3 figures. v2: discussion improved, figure and references added, results unchanged; v3: typo and figure corrections of the erratum included

References in corpus (18)

• Theory of ultracold Fermi gases
• Quantum Nature of the Big Bang: Improved dynamics
• Cosmology of the Lifshitz universe
• The Barbero-Immirzi Parameter as a Scalar Field: K-Inflation from Loop Quantum Gravity?
• Leading Log Solution for Inflationary Yukawa
• Loop quantum cosmology and inhomogeneities
• Lattice refining loop quantum cosmology, anisotropic models and stability
• Interaction of the Barbero--Immirzi Field with Matter and Pseudo-Scalar Perturbations
• Local Void vs Dark Energy: Confrontation with WMAP and Type Ia Supernovae
• Barbero-Immirzi field in canonical formalism of pure gravity
• Peccei--Quinn mechanism in gravity and the nature of the Barbero--Immirzi parameter
• From the Einstein-Cartan to the Ashtekar-Barbero canonical constraints, passing through the Nieh-Yan functional
• The cosmological BCS mechanism and the Big Bang Singularity
• Remarks on Barbero-Immirzi parameter as a field
• Superconducting loop quantum gravity and the cosmological constant
• The Accelerated Expansion of the Universe Challenged by an Effect of the Inhomogeneities. A Review
• Quantum gravity as a Fermi liquid
• Dark Energy Problem in a Four-Fermion Interaction Model

Cited by in corpus (34)

• Quantum field theory, gravity and cosmology in a fractal universe
• Bouncing cosmologies with dark matter and dark energy
• Super-accelerating bouncing cosmology in asymptotically-free non-local gravity
• Cosmological constant from quarks and torsion
• Fermi-bounce Cosmology and scale invariant power-spectrum
• A Zero-Parameter Extension of General Relativity with Varying Cosmological Constant
• Four-fermion interaction from torsion as dark energy
• Fermi-bounce cosmology and the fermion curvaton mechanism
• Dark matter and dark energy induced by condensates
• Flavour-Condensate-induced Breaking of Supersymmetry in Free Wess-Zumino Fluids
• Torsion instead of Technicolor
• Smooth cosmological phase transition in the Horava-Lifshitz gravity
• The Immirzi Parameter as an Instanton Angle
• Quantum Gravity Effect in Torsion Driven Inflation and CP violation
• On Dark Energy and Accelerated Reference Frames
• On the Role of Space-Time Foam in Breaking Supersymmetry via the Barbero-Immirzi Parameter
• Gauge theory of Lorentz group as a source of the dynamical electroweak symmetry breaking
• A note on the semiclassicality of cosmological perturbations
• f(R,T) Gravity Model Behaving as a Dark Energy Source
• Dark matter and baryogenesis in the Fermi-bounce curvaton mechanism
• Note on an action for a particle in the Hořava-Lifshitz Gravity
• Gravity from a fermionic condensate of a gauge theory
• Dynamical torsion as the microscopic origin of the neutrino seesaw
• Cold Dark Matter Based on an Analogy with Superconductivity
• Chiral Symmetry and the Cosmological Constant
• Fermion condensate from torsion in the reheating era after inflation
• A Higher Dimensional Cosmological Model for the Search of Dark Energy Source
• Note on nonsingular cyclic universes in the deformed Horava-Lifshitz gravity
• Dark Coincidences: Small-Scale Solutions with Refracted Gravity and MOND
• Pure gauge theory for the gravitational spin connection
• Horava-Lifshitz theory as a Fermionic Aether in Ashtekar gravity
• Big bounce as scattering of wave function at big crunch
• Holst action and Dynamical Electroweak symmetry breaking
• Condensation Energy of a Spacetime Condensate