论文标题
大型旋转弦振幅的经典限制
Classical Limit of Higher-Spin String Amplitudes
论文作者
论文摘要
已经表明，在两个巨大的旋转状态和Graviton之间，在经典极限的Kerr Black Hole中繁殖了一组特殊的三分幅度。在这项工作中，我们对此结果进行了重新审视，并将其与描述开放和封闭超弦的领先状态相互作用的幅度的分析进行了比较。我们发现两个与光子或重力相互作用的两个巨大旋转状态的经典限制的全旋转结果。该结果与Kerr不同，而是与当前的四矢量和分别与电磁词和重力相关的经典弦产生的应力能量张量。对于与黑洞的情况相反的超弦振幅，我们发现旋转到无穷大的极限对于重现经典的自旋多物是必要的。
It has been shown that a special set of three-point amplitudes between two massive spinning states and a graviton reproduces the linearised stress-energy tensor for a Kerr black hole in the classical limit. In this work we revisit this result and compare it to the analysis of the amplitudes describing the interaction of leading Regge states of the open and closed superstring. We find an all-spin result for the classical limit of two massive spinning states interacting with a photon or graviton. This result differs from Kerr and instead matches the current four-vector and the stress-energy tensor generated by a classical string coupled to electromagnetism and gravity respectively. For the superstring amplitudes, contrary to the black-hole case, we find that the spin to infinity limit is necessary to reproduce the classical spin multipoles.
