Gravitational instability of the vacuum and the cosmological constant problem

被引:1
|
作者
Moffat, JW
机构
[1] Perimeter Inst Theoret Phys, Waterloo, ON, Canada
[2] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada
来源
关键词
D O I
10.1142/S0217751X05028387
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
A mechanism for suppressing the cosmological constant is described, using a superconducting analogy in which fermions coupled perturbatively to gravitons are in an unstable false vacuum. The coupling of the fermions to gravitons and a screened attractive interaction among pairs of fermions generates fermion condensates with zero momentum and a phase transition induces a non-perturbative transition to a true vacuum state. This produces a positive energy gap A in the vacuum energy identified with VIA, where A is the cosmological constant. In the strong coupling limit, a large cosmological constant induces a period of inflation in the early universe, followed by a weak coupling limit in which root Lambda vanishes exponentially fast as the universe expands due to the dependence of the energy gap on the density of Fermi surface fermions, predicting a small cosmological constant in the early universe.
引用
收藏
页码:4683 / 4689
页数:7
相关论文
共 50 条
  • [1] GRAVITATIONAL INSTABILITY OF VACUUM AND THE COSMOLOGICAL PROBLEM
    Fomin, P. I.
    [J]. PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY, 2013, (03): : 6 - 9
  • [2] GRAVITATIONAL-INSTABILITY OF VACUUM AND COSMOLOGICAL PROBLEM
    FOMIN, PI
    [J]. DOPOVIDI AKADEMII NAUK UKRAINSKOI RSR SERIYA A-FIZIKO-MATEMATICHNI TA TECHNICHNI NAUKI, 1975, (09): : 831 - 835
  • [3] The quantum vacuum and the cosmological constant problem
    Rugh, SE
    Zinkernagel, H
    [J]. STUDIES IN HISTORY AND PHILOSOPHY OF MODERN PHYSICS, 2002, 33B (04): : 663 - 705
  • [4] Gravitational theory without the cosmological constant problem
    Guendelman, EI
    Kaganovich, AB
    [J]. MODERN PHYSICS LETTERS A, 1997, 12 (32) : 2421 - 2424
  • [5] Gravitational theory without the cosmological constant problem
    Guendelman, EI
    Kaganovich, AB
    [J]. PHYSICAL REVIEW D, 1997, 55 (10): : 5970 - 5980
  • [6] Viscous gravitational aether and the cosmological constant problem
    Kuang, Xiaomei
    Ling, Yi
    [J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2009, (10):
  • [7] Renormalizing the vacuum energy in cosmological spacetime: implications for the cosmological constant problem
    Cristian Moreno-Pulido
    Joan Solà Peracaula
    [J]. The European Physical Journal C, 82
  • [8] Renormalizing the vacuum energy in cosmological spacetime: implications for the cosmological constant problem
    Moreno-Pulido, Cristian
    Sola Peracaula, Joan
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2022, 82 (06):
  • [9] The cosmological constant problem and running vacuum in the expanding universe
    Sola Peracaula, Joan
    [J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2022, 380 (2230):
  • [10] VACUUM CATASTROPHE - AN ELEMENTARY EXPOSITION OF THE COSMOLOGICAL CONSTANT PROBLEM
    ADLER, RJ
    CASEY, B
    JACOB, OC
    [J]. AMERICAN JOURNAL OF PHYSICS, 1995, 63 (07) : 620 - 626