Cosmological Bardeen-Cooper-Schrieffer condensate as dark energy

被引：43

作者：

Alexander, Stephon ^{[1
]}

Biswas, Tirthabir ^{[2
]}

Calcagni, Gianluca ^{[2
]}

机构：

[1] Haverford Coll, Dept Phys & Astron, Haverford, PA 19041 USA

[2] Penn State Univ, Dept Phys, Inst Gravitat & Cosmos, University Pk, PA 16802 USA

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 04期

关键词：

BOSE-EINSTEIN CONDENSATION; LOOP QUANTUM COSMOLOGY; GRAVITY;

D O I：

10.1103/PhysRevD.81.043511

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：13

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