Cosmological BCS mechanism and the big bang singularity

被引:31
作者
Alexander, Stephon [1 ,2 ]
Biswas, Tirthabir [1 ]
机构
[1] Penn State Univ, Dept Phys, Inst Gravitat & Cosmos, University Pk, PA 16802 USA
[2] Haverford Coll, Dept Phys & Astron, Haverford, PA 19041 USA
来源
PHYSICAL REVIEW D | 2009年 / 80卷 / 02期
关键词
UNIVERSE; ENERGY; ENTROPY;
D O I
10.1103/PhysRevD.80.023501
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We provide a novel mechanism that resolves the big bang singularity present in Friedman-Lemaitre-Robertson-Walker space-times without the need for ghost fields. Building on the fact that a four-fermion interaction arises in general relativity when fermions are covariantly coupled, we show that at early times the decrease in scale factor enhances the correlation between pairs of fermions. This enhancement leads to a BCS-like condensation of the fermions and opens a gap dynamically driving the Hubble parameter H to zero and results in a nonsingular bounce, at least in some special cases.
引用
收藏
页数:9
相关论文
共 50 条
  • [21] Primordial Beryllium as a Big Bang Calorimeter
    Pospelov, Maxim
    Pradler, Josef
    PHYSICAL REVIEW LETTERS, 2011, 106 (12)
  • [22] Grand rip and grand bang/crunch cosmological singularities
    Fernandez-Jambrina, L.
    PHYSICAL REVIEW D, 2014, 90 (06):
  • [23] General relativistic singularity-free cosmological model
    Berman, Marcelo Samuel
    ASTROPHYSICS AND SPACE SCIENCE, 2009, 321 (3-4) : 157 - 160
  • [24] The little sibling of the big rip singularity
    Bouhmadi-Lopez, Mariam
    Errahmani, Ahmed
    Martin-Moruno, Prado
    Ouali, Taoufik
    Tavakoli, Yaser
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2015, 24 (10):
  • [25] On the Hubble expansion in a Big Bang quantum cosmology
    van Putten, Maurice H. P. M.
    JOURNAL OF HIGH ENERGY ASTROPHYSICS, 2025, 45 : 194 - 199
  • [26] General relativistic singularity-free cosmological model
    Marcelo Samuel Berman
    Astrophysics and Space Science, 2009, 321 : 157 - 160
  • [27] Cosmological solutions to the lithium problem: Big-bang nucleosynthesis with photon cooling, X-particle decay and a primordial magnetic field
    Yamazaki, Dai G.
    Kusakabe, Motohiko
    Kajino, Toshitaka
    Mathews, Grant. J.
    Cheoun, Myung-Ki
    PHYSICAL REVIEW D, 2014, 90 (02):
  • [28] Barrow cosmology and big-bang nucleosynthesis
    Sheykhi, Ahmad
    Sooraki, Ava Shahbazi
    PHYSICAL REVIEW D, 2025, 111 (04)
  • [29] Big Bang Nucleosynthesis constraints on Barrow entropy
    Barrow, John D.
    Basilakos, Spyros
    Saridakis, Emmanuel N.
    PHYSICS LETTERS B, 2021, 815
  • [30] THE COSMIC BELLOWS: THE BIG BANG AND THE SECOND LAW
    Salthe, Stanley
    Fuhrman, Gary
    COSMOS AND HISTORY-THE JOURNAL OF NATURAL AND SOCIAL PHILOSOPHY, 2005, 1 (02): : 295 - 318