arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0909.2807hep-th
收藏

四维R^2引力中的Lifshitz黑洞

A Lifshitz Black Hole in Four Dimensional R^2 Gravity

Rong-Gen Cai, Yan Liu, Ya-Wen Sun

摘要:

考虑了具有负宇宙学常数的四维高导数引力理论,证明了在该系统中存在具有任意动力学指数z的Lifshitz型和Schrödinger型真空解.然后我们找到了一个解析的黑洞解,它在特定的耦合常数下渐近于z=3/2的真空Lifshitz解.我们分析了该黑洞的热力学行为,发现该黑洞在非零温度时熵为零,这与新质量引力中BTZ黑洞在特定耦合下的情况非常相似.另外,我们还发现最近由E.当牛顿常数取正值时,Ayon-Beato等人的熵和质量为负。

英文摘要:

We consider a higher derivative gravity theory in four dimensions with a negative cosmological constant and show that vacuum solutions of both Lifshitz type and Schrödinger type with arbitrary dynamical exponent z exist in this system. Then we find an analytic black hole solution which asymptotes to the vacuum Lifshitz solution with z=3/2 at a specific value of the coupling constant. We analyze the thermodynamic behavior of this black hole and find that the black hole has zero entropy while non-zero temperature, which is very similar to the case of BTZ black holes in new massive gravity at a specific coupling. In addition, we find that the three dimensional Lifshitz black hole recently found by E. Ayon-Beato et al. has a negative entropy and mass when the Newton constant is taken to be positive.

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。

↑