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arXiv 2106.06962hep-thgr-qc
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五维微态几何的角动量下界

Lower bound for angular momenta of microstate geometries in five dimensions

Shinya Tomizawa

摘要:

我们研究了五维无规范最小超引力中具有双轴对称和反射对称的渐进平坦、稳态微观几何的BPS解。我们证明了具有少量中心(至少5个中心)的微态几何的角动量有下界,它比最大自旋BMPV黑洞的角动量稍小.因此,存在一个狭窄的参数区域,使得中心数较少的微态几何与BMPV黑洞具有相同的角动量。此外,我们还研究了瞬逝各能曲面的拓扑结构对通过两个中心之间的2-圆的磁通量的依赖性。

英文摘要:

We study the BPS solutions of the asymptotically flat, stationary microstate geometries with bi-axisymmetry and reflection symmetry in the five-dimensional ungauged minimal supergravity. We show that the angular momenta of the microstate geometry with a small number of centers (at least, five centers) have lower bounds, which are slightly smaller than those of the maximally spinning BMPV black hole. Therefore, there exists a certain narrow parameter region such that the microstate geometry with a small number of centers admits the same angular momenta as the BMPV black hole. Moreover, we investigate the dependence of the topological structure of the evanescent ergosurfaces on the magnetic fluxes through the 2-circles between two centers.

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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