arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0903.3256gr-qchep-th
收藏

旋转黑洞的热力学不稳定性

Thermodynamic instability of rotating black holes

Ricardo Monteiro, Malcolm J. Perry, Jorge E. Santos

摘要:

我们证明了当存在热力学不稳定性时,不同维度的旋转黑洞的准欧几里德截面至少具有一个非共形负模。固定诱导度规的边界条件对应于巨正则系综的配分函数。事实上,在渐近平坦的情况下,我们发现,一个负的模式持续存在,即使在常数角动量的比热是积极的,因为在这个合奏的稳定性也需要积极的等温惯性动量。我们特别关注克尔黑洞,迈尔斯-佩里黑洞在五,六维,和恩帕兰-雷尔黑环的解决方案。我们继续进一步考虑更丰富的情况下,渐近AdS克尔黑洞在四维,其中热力学稳定性是预期足够大的宇宙学常数。在非转动极限下,所得结果与前人的研究结果一致,并支持利用准欧几里德瞬子来构造引力配分函数。

英文摘要:

We show that the quasi-Euclidean sections of various rotating black holes in different dimensions possess at least one non-conformal negative mode when thermodynamic instabilities are expected. The boundary conditions of fixed induced metric correspond to the partition function of the grand-canonical ensemble. Indeed, in the asymptotically flat cases, we find that a negative mode persists even if the specific heat at constant angular momenta is positive, since the stability in this ensemble also requires the positivity of the isothermal momentum of inertia. We focus in particular on Kerr black holes, on Myers-Perry black holes in five and six dimensions, and on the Emparan-Reall black ring solution. We go on further to consider the richer case of the asymptotically AdS Kerr black hole in four dimensions, where thermodynamic stability is expected for a large enough cosmological constant. The results are consistent with previous findings in the non-rotation limit and support the use of quasi-Euclidean instantons to construct gravitational partition functions.

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。

↑