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:
Korea Adv Inst Sci & Technol, Dept Phys, Daejeon 34141, South Korea
Inst for Basic Sci Korea, Ctr Theoret Phys Universe, Daejeon 34051, South KoreaKorea Adv Inst Sci & Technol, Dept Phys, Daejeon 34141, South Korea
Kang, Subeom
Yeom, Dong-Han
论文数: 0引用数: 0
h-index: 0
机构:
Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan
Asia Pacific Ctr Theoret Phys, Pohang 37673, South Korea
POSTECH, Dept Phys, Pohang 37673, South KoreaKorea Adv Inst Sci & Technol, Dept Phys, Daejeon 34141, South Korea