Cosmological Bardeen-Cooper-Schrieffer condensate as dark energy

Stephon Alexander, Tirthabir Biswas, and Gianluca Calcagni
Phys. Rev. D 81, 043511 – Published 3 February 2010; Erratum Phys. Rev. D 81, 069902 (2010)

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.

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  • Received 22 December 2009

DOI:https://doi.org/10.1103/PhysRevD.81.043511

©2010 American Physical Society

Erratum

Erratum: Cosmological Bardeen-Cooper-Schrieffer condensate as dark energy [Phys. Rev. D 81, 043511 (2010)]

Stephon Alexander, Tirthabir Biswas, and Gianluca Calcagni
Phys. Rev. D 81, 069902 (2010)

Authors & Affiliations

Stephon Alexander

  • Department of Physics and Astronomy, Haverford College, Haverford, Pennsylvania 19041, USA

Tirthabir Biswas and Gianluca Calcagni

  • Institute for Gravitation and the Cosmos, Department of Physics, The Pennsylvania State University, 104 Davey Lab, University Park, Pennsylvania 16802, USA

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Issue

Vol. 81, Iss. 4 — 15 February 2010

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