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arXiv 1408.4593gr-qc
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自旋C度规的无质量场微扰

Massless field perturbations of the spinning C metric

Donato Bini, Christian Cherubini, Andrea Geralico

摘要:

给出了一个描述自旋$s\le2$测试场的主方程,该测试场是{ \it自旋C度规}时空的规范不变和四元不变扰动,该时空表示具有质量$M$的源,以每单位质量$a$的角动量均匀旋转,并以加速度$A$均匀加速。这个方程可以分为径向部分和角向部分。的行为的径向函数的视界附近的研究和使用检查的影响$A$的现象的超辐射,而角度方程导致修改后的自旋加权球谐解广义的克尔时空。最后讨论了微扰场的自旋与加速参量$A$之间的耦合。

英文摘要:

A single master equation is given describing spin $s\le2$ test fields that are gauge- and tetrad-invariant perturbations of the {\it spinning C metric} spacetime representing a source with mass $M$, uniformly rotating with angular momentum per unit mass $a$ and uniformly accelerated with acceleration $A$. This equation can be separated into its radial and angular parts. The behavior of the radial functions near the horizons is studied and used to examine the influence of $A$ on the phenomenon of superradiance, while the angular equation leads to modified spin-weighted spheroidal harmonic solutions generalizing those of the Kerr spacetime. Finally the coupling between the spin of the perturbing field and the acceleration parameter $A$ is discussed.

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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