Vacuum quantum effects of nonconformal scalar field in a nonsingular cosmological model

被引:1
|
作者
Novello, M
Bezerra, VB
Mostepanenko, VM
机构
[1] Ctr Brasileiro Pesquisas Fis, BR-22290900 Rio De Janeiro, Brazil
[2] Univ Fed Paraiba, Dept Fis, BR-58059970 Joao Pessoa, Paraiba, Brazil
来源
关键词
D O I
10.1142/S0218271898000528
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The total vacuum stress-energy tensor of nonconformal scalar held is calculated in a nonsingular metric determined by some background matter with the effective negative energy density and pressure. The corrections due to the field nonconformity are shown to dominate the conformal contributions for some cases. The back reaction problem of vacuum stress-energy tensor upon the background metric is also discussed.
引用
收藏
页码:779 / 792
页数:14
相关论文
共 50 条
  • [21] Instantaneous vacuum and States of Low Energy for a scalar field in cosmological backgrounds
    Ferreiro, Antonio
    Pla, Silvia
    [J]. AVENUES OF QUANTUM FIELD THEORY IN CURVED SPACETIME, AQFTCS 2022, 2023, 2531
  • [22] Vacuum stress-energy tensor of nonconformal scalar field in quasi-Euclidean gravitational background
    Bordag, M
    Lindig, J
    Mostepanenko, VM
    Pavlov, YV
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 1997, 6 (04): : 449 - 463
  • [23] Stable cosmological models driven by a free quantum scalar field
    Dappiaggi, Claudio
    Fredenhagen, Klaus
    Pinamonti, Nicola
    [J]. PHYSICAL REVIEW D, 2008, 77 (10):
  • [24] On the Casimir energy for a massive quantum scalar field and the cosmological constant
    Gazzola, G.
    Nemes, M. C.
    Wreszinski, W. F.
    [J]. ANNALS OF PHYSICS, 2009, 324 (10) : 2095 - 2107
  • [25] ISOTROPIZATION BY SCALAR FIELD DRIVEN INFLATION AND THE COSMOLOGICAL QUANTUM BOUNDARY
    LUKASH, VN
    SCHMIDT, HJ
    [J]. ASTRONOMISCHE NACHRICHTEN, 1988, 309 (01) : 25 - 31
  • [26] Mirror moving in quantum vacuum of a massive scalar field
    Wang, Qingdi
    Unruh, William G.
    [J]. PHYSICAL REVIEW D, 2015, 92 (06):
  • [27] Scalar perturbations in nonsingular universes from interacting vacuum
    Alves, Filipe Cattete
    Maier, Rodrigo
    [J]. CLASSICAL AND QUANTUM GRAVITY, 2024, 41 (12)
  • [28] Simplest cosmological model with the scalar field II. Influence of cosmological constant
    Kamenshchik, AY
    Khalatnikov, IM
    Toporensky, AV
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 1998, 7 (01): : 129 - 138
  • [29] Quantum scalar field in quantum gravity: the vacuum in the spherically symmetric case
    Gambini, Rodolfo
    Pullin, Jorge
    Rastgoo, Saeed
    [J]. CLASSICAL AND QUANTUM GRAVITY, 2009, 26 (21)
  • [30] AN ANISOTROPIC COSMOLOGICAL MODEL CREATED BY QUANTUM POLARIZATION OF VACUUM
    KOFMAN, LA
    SAKHNI, V
    STAROBINSKII, AA
    [J]. ZHURNAL EKSPERIMENTALNOI I TEORETICHESKOI FIZIKI, 1983, 85 (06): : 1876 - 1886