Vacuum polarization in the space-time of a scalar-tensor cosmic string

被引：3
|
作者：
Bezerra, VB [1 ]
Filho, RMT
Grebot, G
Guimaraes, MEX
机构：
[1] UFPb, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil
[2] UnB, Dept Matemat, BR-70910900 Brasilia, DF, Brazil
来源：
MODERN PHYSICS LETTERS A | 2001年 / 16卷 / 24期
关键词：
D O I：
10.1142/S0217732301004662
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the vacuum polarization effect in the space-time generated by a magnetic flux cosmic string in the framework of a scalar-tensor theory of gravity. The vacuum expectation values of the energy-momentum tensor of a conformally coupled scalar field are calculated and the dilaton's contribution to the vacuum polarization effect is shown.
引用
收藏
页码：1565 / 1571
页数：7
相关论文
共 50 条
  • [31] Quantum dynamics of scalar particles in the space-time of a cosmic string in the context of gravity's rainbow
    Santos, L. C. N.
    Mota, C. E.
    Barros Jr, C. C.
    Castro, L. B.
    Bezerra, V. B.
    [J]. ANNALS OF PHYSICS, 2020, 421
  • [32] Modified Saez-Ballester scalar-tensor theory from 5D space-time
    Rasouli, S. M. M.
    Moniz, Paulo Vargas
    [J]. CLASSICAL AND QUANTUM GRAVITY, 2018, 35 (02)
  • [33] A string cosmological model in a scalar-tensor theory of gravitation
    Reddy, DRK
    [J]. ASTROPHYSICS AND SPACE SCIENCE, 2003, 286 (3-4) : 359 - 363
  • [34] Cosmic no-hair conjecture in scalar-tensor theories
    T Singh
    R Chaubey
    [J]. Pramana, 2006, 67 : 1037 - 1041
  • [35] STATIC SPACE-TIME IN GENERAL SCALAR TENSOR THEORY
    BANERJEE, N
    DUTTACHOUDHURY, SB
    BANERJEE, A
    [J]. JOURNAL OF MATHEMATICAL PHYSICS, 1984, 25 (11) : 3299 - 3302
  • [36] Generalized Dirac Oscillator in Cosmic String Space-Time
    Deng, Lin-Fang
    Long, Chao-Yun
    Long, Zheng-Wen
    Xu, Ting
    [J]. ADVANCES IN HIGH ENERGY PHYSICS, 2018, 2018
  • [37] Axially Symmetric Cosmic Strings in a Scalar-Tensor Theory
    D. R. K. Reddy
    R. L. Naidu
    V. U. M. Rao
    [J]. Astrophysics and Space Science, 2006, 306 : 185 - 188
  • [38] Axially symmetric cosmic strings in a scalar-tensor theory
    Reddy, D. R. K.
    Naidu, R. L.
    Rao, V. U. M.
    [J]. ASTROPHYSICS AND SPACE SCIENCE, 2006, 306 (04) : 185 - 188
  • [39] Cosmic no-hair conjecture in scalar-tensor theories
    Singh, T.
    Chaubey, R.
    [J]. PRAMANA-JOURNAL OF PHYSICS, 2006, 67 (06): : 1037 - 1041
  • [40] Stability of cosmic structures in scalar-tensor theories of gravity
    Panotopoulos, Grigoris
    Rincon, Angel
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (01):
12345