arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1208.4413hep-thgr-qc
收藏

黑环的全息描述

Holographic Descriptions of Black Rings

Bin Chen, Jia-ju Zhang

摘要:

本文研究了两类黑环的全息描述:中性双旋转黑环和偶极带电黑环。对于一般的非极值黑环,全息CFT的信息,包括中心荷和左右移动的温度,可以从外视界和内视界的热力学中读取,如arXiv:1206.2015所建议的。为了证实这些图片,我们研究了极端的黑环在完善的形式主义。我们利用拉伸视界理论中的渐近对称群分析方法计算了对偶CFTs的中心荷,并得到了精确的一致性。此外,我们还研究了标量场在近极值黑环上的超辐射散射,得到了与CFT预言相符合的散射振幅。

英文摘要:

In this paper, we investigate the holographic descriptions of two kinds of black rings, the neutral doubly rotating black ring and the dipole charged black ring. For generic nonextremal black rings, the information of holographic CFT duals, including the central charges and left- and right-moving temperatures, could be read from the thermodynamics at the outer and inner horizons, as suggested in arXiv:1206.2015. To confirm these pictures, we study the extreme black rings in the well-established formalism. We compute the central charges of dual CFTs by doing asymptotic symmetry group analysis in the stretched horizon formalism, and find exact agreements. Moreover, we study the superradiant scattering of a scalar field off the near-extremal black rings and obtain the scattering amplitudes, which are in good match with the CFT predictions.

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。

↑