Wormhole;
Regular black hole;
Israel formalism;
THIN-SHELL WORMHOLES;
REGULAR BLACK-HOLE;
TRAVERSABLE WORMHOLES;
D O I:
10.1007/s10509-019-3664-3
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
In this paper, we explore the stable and unstable geometrical structures of thin-shell wormholes. We use Visser cut and paste approach to develop thin-shell from Bardeen anti-de Sitter black holes. The characteristics of matter distribution are determined by using Israel formalism. We discuss the existence of exotic matter at the wormhole throat through energy conditions and examine the attractive/repulsive nature of wormhole throat. The linearized stability of thin-shell is studied through barotropic and variable equations of state (generalized phantomlike and generalized Chaplygin gas model). We conclude that the stability of wormhole depends on the matter distribution as well as cosmological constant. Finally, we compare the stable structure of wormhole for these equations of state through length parameter.
机构:
Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
Sez Roma1 INFN, I-00185 Rome, ItalyUniv Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
Arzano, Michele
Gubitosi, Giulia
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机构:
Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Theoret Phys, London SW7 2BZ, EnglandUniv Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
Gubitosi, Giulia
论文数: 引用数:
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机构:
Magueijo, Joao
Amelino-Camelia, Giovanni
论文数: 0引用数: 0
h-index: 0
机构:
Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
Sez Roma1 INFN, I-00185 Rome, ItalyUniv Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
机构:
Univ London Queen Mary & Westfield Coll, Dept Phys, London E1 4NS, EnglandUniv London Queen Mary & Westfield Coll, Dept Phys, London E1 4NS, England