2015年11月17日
Does the Gauss-Bonnet term stabilize wormholes?
Classical and Quantum Gravity
- ,
- ,
- 巻
- 32
- 号
- 23
- 開始ページ
- 235021
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0264-9381/32/23/235021
- 出版者・発行元
- Institute of Physics Publishing
The effect of the Gauss-Bonnet term on the existence and dynamical stability of thin-shell wormholes as negative tension branes is studied in the arbitrary-dimensional spherically, planar and hyperbolically symmetric spacetimes. We consider radial perturbations against the shell for the solutions that have the Z2 symmetry and admit the general relativistic limit. It is shown that the Gauss-Bonnet term shrinks the parameter region that admits static wormholes. The effect of the Gauss-Bonnet term on the stability depends on the spacetime symmetry. For planar symmetric wormholes, the Gauss-Bonnet term does not affect their stability. If the coupling constant is positive but small, the Gauss-Bonnet term tends to destabilize spherically symmetric wormholes, while it stabilizes hyperbolically symmetric wormholes. The Gauss-Bonnet term can destabilize hyperbolically symmetric wormholes as a non-perturbative effect, but spherically symmetric wormholes cannot be stable.
- リンク情報
- ID情報
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- DOI : 10.1088/0264-9381/32/23/235021
- ISSN : 1361-6382
- ISSN : 0264-9381
- ORCIDのPut Code : 25712414
- SCOPUS ID : 84947967608