Chaos in a Many-String Scattering Amplitude.

Chaos in a Many-String Scattering Amplitude.
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多弦散射振幅中的混沌。

DOI:
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发表时间:
2021
影响因子:
8.6
通讯作者:
V. Rosenhaus
V. Rosenhaus
中科院分区:
物理与天体物理1区
文献类型:
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作者:
V. Rosenhaus

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弦理论为任意数量光弦的树级散射振幅提供了一个紧凑的积分表达式。我们关注涉及几个速子和许多光子的振幅,并特别选择偏振和运动学。我们在振幅中挑出一个特定的极点,对应于连续的光子散射,这导致了一个中间状态,一个处于确定状态的高激发弦。这提供了一个物理过程来创建一个高度激发的弦。观察到的振幅的不规则行为表明,这可以作为多粒子散射中混沌的简单而明确的说明。
String theory provides a compact integral expression for the tree-level scattering amplitude of an arbitrary number of light strings. We focus on amplitudes involving a few tachyons and many photons, with a special choice of polarizations and kinematics. We pick out a particular pole in the amplitude-one corresponding to successive photon scatterings, which lead to an intermediate state with a highly excited string in a definite state. This provides a physical process that creates a highly excited string. The observed erratic behavior of the amplitude suggests that this may serve as a simple and explicit illustration of chaos in many-particle scattering.
DOI: 10.1007/jhep05(2021)048
发表时间: 2021
影响因子: 5.4
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