Lorentzian wormhole in the framework of loop quantum cosmology

被引:0
|
作者
Rikpratik Sengupta
Shounak Ghosh
Mehedi Kalam
机构
[1] Aliah University,Department of Physics
[2] Government of West Bengal,Directorate of Legal Metrology, Department of Consumer Affairs
关键词
D O I
暂无
中图分类号
学科分类号
摘要
In this paper, we construct a traversable static Lorentzian wormhole in the effective scenario of Loop Quantum Cosmology (LQC), where the field equations are modified due to the ultraviolet (UV) corrections introduced at large space-time curvatures. A stable wormhole can be constructed in the effective scenario without the violation of Null energy condition (NEC) by physical matter at the throat. The NEC is effectively violated due to the corrections in the field equations from LQC, resolving the Weyl curvature singularity at the throat. However, the physical matter does violate the Strong energy condition (SEC), suggesting the interesting possibility that dark energy can be harnessed into a wormhole. A possible explanation for this is the presence of inherent pressure isotropy in the UV-corrected field equations (discussed and compared to braneworld wormholes in the discussion). No additional exotic ingredient (violating NEC) is required, avoiding quantum instabilities. The tidal forces at the throat do not diverge and also the throat is found to be stable. The wormhole features an attractive geometry. LQC can resolve both types of curvature singularities appearing at the black hole centre and wormhole throat, without exotic matter.
引用
收藏
相关论文
共 50 条
  • [1] Lorentzian wormhole in the framework of loop quantum cosmology
    Sengupta, Rikpratik
    Ghosh, Shounak
    Kalam, Mehedi
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2023, 83 (09):
  • [2] Lorentzian quantum cosmology
    Feldbrugge, Job
    Lehners, Jean-Luc
    Turok, Neil
    [J]. PHYSICAL REVIEW D, 2017, 95 (10)
  • [3] Gravastar in the framework of Loop Quantum Cosmology
    Ghosh, Shounak
    Sengupta, Rikpratik
    Kalam, Mehedi
    [J]. EUROPEAN PHYSICAL JOURNAL PLUS, 2024, 139 (06):
  • [4] Lorentzian quantum cosmology with torsion
    Mondal, Vikramaditya
    Chakraborty, Sumanta
    [J]. PHYSICAL REVIEW D, 2024, 109 (04)
  • [5] Truly Lorentzian quantum cosmology
    Jia, Ding
    [J]. PHYSICAL REVIEW D, 2023, 108 (10)
  • [6] Isotropic loop quantum cosmology with matter. II. The Lorentzian constraint
    Hinterleitner, F
    Major, S
    [J]. PHYSICAL REVIEW D, 2003, 68 (12)
  • [7] Separate universes in loop quantum cosmology: Framework and applications
    Wilson-Ewing, Edward
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2016, 25 (08):
  • [8] Lorentzian quantum cosmology goes simplicial
    Dittrich, Bianca
    Gielen, Steffen
    Schander, Susanne
    [J]. CLASSICAL AND QUANTUM GRAVITY, 2022, 39 (03)
  • [9] Loop quantum cosmology from an alternative Hamiltonian. II. Including the Lorentzian term
    Yang, Jinsong
    Zhang, Cong
    Ma, Yongge
    [J]. PHYSICAL REVIEW D, 2020, 102 (08)
  • [10] Loop Quantum Cosmology
    Martin Bojowald
    [J]. Living Reviews in Relativity, 2008, 11