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arXiv 0909.3065hep-thgr-qc
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四维Hoenava-Lifshitz引力弦解

Four dimensional string solutions in Hořava-Lifshitz gravity

Inyong Cho, Gungwon Kang

摘要:

我们调查弦的解决方案,在四维的基础上Hoenava-Lifshitz引力。对于Cotton张量为零的一类限制解,我们发现包含BTZ黑弦的爱因斯坦引力中的类弦解也是Hoelava-Lifshitz引力中的解.几何以与爱因斯坦引力相同的方式被扭曲,但“共形”的流逝函数在霍瓦瓦-利夫希茨引力中不受约束。事实证明,如果$λ\ne 1$,则不存在其他解决方案。对于爱因斯坦引力在IR极限下恢复的模型参数值(即,$λ=1$),存在一个附加的解决方案,其共形的推移函数被确定。有趣的是,这个解允许一个沿弦方向均匀的BTZ黑弦,这与爱因斯坦引力中扭曲的BTZ黑弦不同。因此,它是一个很好的候选人的理论测试。

英文摘要:

We investigate string-like solutions in four dimensions based on Hořava-Lifshitz gravity. For a restricted class of solutions where the Cotton tensor vanishes, we find that the string-like solutions in Einstein gravity including the BTZ black strings are solutions in Hořava-Lifshitz gravity as well. The geometry is warped in the same way as in Einstein gravity, but the "conformal" lapse function is not constrained in Hořava-Lifshitz gravity. It turns out that if $λ\ne 1$, there exist no other solutions. For the value of model parameter with which Einstein gravity recovers in IR limit (i.e., $λ=1$), there exists an additional solution of which the conformal lapse function is determined. Interestingly, this solution admits a uniform BTZ black string along the string direction, which is distinguished from the warped BTZ black string in Einstein gravity. Therefore, it is a good candidate for the test of the theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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