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(PDF) Traversable wormholes and the exoticity in HL gravity |
2011-12-28
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Institute of Theoretical Physics Chinese Academy of Sciences |
学术报告 |
Title 题目 |
Traversable wormholes and the exoticity in HL gravity |
Speaker 报告人 |
Prof. Edwin J. Son |
Dept. of Phys., Sogang Univ, Rep of Korea |
Date 日期 |
2011-12-28 PM 15:30 Wednesday |
Venue 地点 |
Conference Hall 322, ITP/理论物理所322报告厅 |
Abstract 摘要 |
Asymptotically flat wormhole solutions are found in the deformed Horava-Lifshitz gravity. It turns out that higher curvature terms can not play the role of exotic matters which are crucial to form a traversable wormhole, and external exotic sources are still needed. In particular, the exotic matter behaves like phantom energy if Kehagias-Sfetsos vacuum is considered outside the wormhole. Interestingly, the spherically symmetric setting makes the matter and the higher curvature contribution satisfy four-dimensional conservation of energy in the covariant form.
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