Wormholes and black universes without phantom fields in Einstein-Cartan theory

被引:72
|
作者
Bronnikov, K. A. [1 ,2 ,3 ]
Galiakhmetov, A. M. [4 ]
机构
[1] VNIIMS, Ozyornaya Ul 46, Moscow 119361, Russia
[2] Peoples Friendship Univ Russia, Ul Miklukho Maklaya 6, Moscow 117198, Russia
[3] Natl Res Nucl Univ, MEPhI Moscow Engn Phys Inst, Moscow 115409, Russia
[4] Donetsk Natl Tech Univ, Ul Kirova 51, UA-84646 Gorlovka, Ukraine
关键词
COSMOLOGICAL MODELS; GENERAL-RELATIVITY; GRAVITY; TORSION;
D O I
10.1103/PhysRevD.94.124006
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We obtain a family of regular static, spherically symmetric solutions in Einstein-Cartan theory with an electromagnetic field and a nonminimally coupled scalar field with the correct sign of kinetic energy density. At different values of its parameters, the solution, being asymptotically flat at large values of the radial coordinate, describes (i) twice asymptotically flat symmetric wormholes, (ii) asymmetric wormholes with an AdS asymptotic at the "far end," (iii) regular black holes with an extremal horizon or two simple horizons, and (iv) black universes with a de Sitter asymptotic at the far end. As in other black universe models, it is a black hole as seen by a distant observer, but beyond its horizon there is a nonsingular expanding universe. In all these cases, both the metric and the torsion are regular in the whole space.
引用
收藏
页数:9
相关论文
共 50 条
  • [1] Wormholes without Exotic Matter in Einstein-Cartan Theory
    Bronnikov, K. A.
    Galiakhmetov, A. M.
    GRAVITATION & COSMOLOGY, 2015, 21 (04): : 283 - 288
  • [2] STATIC HOMOGENEOUS UNIVERSES IN EINSTEIN-CARTAN THEORY
    EFREMOV, AP
    IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII FIZIKA, 1977, (03): : 147 - 148
  • [3] Kinematics of Einstein-Cartan universes
    Pasmatsiou, Klaountia
    Tsagas, Christos G.
    Barrow, John D.
    PHYSICAL REVIEW D, 2017, 95 (10)
  • [4] Fermionic and bosonic fields in the Einstein-Cartan theory
    Ribas, Marlos O.
    Devecchi, Fernando P.
    Kremer, Gilberto M.
    MODERN PHYSICS LETTERS A, 2017, 32 (26)
  • [5] Wormholes without exotic matter in Einstein–Cartan theory
    K. A. Bronnikov
    A. M. Galiakhmetov
    Gravitation and Cosmology, 2015, 21 : 283 - 288
  • [6] LINEARIZED EINSTEIN-CARTAN THEORY
    ARKUSZEWSKI, W
    KOPCZYNSKI, W
    PONOMARIEV, VN
    ANNALES DE L INSTITUT HENRI POINCARE SECTION A PHYSIQUE THEORIQUE, 1974, 21 (01): : 89 - 95
  • [7] Signature of Einstein-Cartan theory
    Costa, Bruno Arderucio
    Bonder, Yuri
    PHYSICS LETTERS B, 2024, 849
  • [8] Phantom dark ghost in Einstein-Cartan gravity
    Chang, Yu-Chiao
    Bouhmadi-Lopez, Mariam
    Chen, Pisin
    EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (05):
  • [9] Traversable wormholes in Einstein-Cartan gravity admitting conformal motion
    Sarkar, Nayan
    Sarkar, Susmita
    Rahaman, Farook
    Balo, Pankaj
    EUROPEAN PHYSICAL JOURNAL PLUS, 2024, 139 (09):
  • [10] Energy problem in the Einstein-Cartan theory
    Polishchuk, R. F.
    GRAVITATION & COSMOLOGY, 2015, 21 (03): : 220 - 235