Current-carrying string loop motion: Limits on the classical description and shocks
Current-carrying string loop motion: Limits on the classical description and shocks
复制标题
载流弦环运动：经典描述和冲击的限制
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
P. Peter
中科院分区：
文献类型：
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作者：
X. Martín;P. Peter
超导宇宙弦的动力学演化比简单的Goto-Nambu弦复杂得多。由于这个原因，只有几个已知的解析解，没有数值解。本文的目的是提出平面超导宇宙弦环动力学的数值解。在大多数情况下，纯粹的动力学方法不足以正确地描述环的演化，主要是因为当类空电流存在时会出现冲击，而类时电流会扭结，导致量子效应。量子效应的结果在这个时候大多是未知的，因为这个问题需要一个动力学场论的处理。然而，最终的结果很可能是来自弦的电荷载流子形式的大量辐射。
The dynamical evolution of superconducting cosmic strings is much more complicated than that of simple Goto-Nambu strings. For this reason, there are only a few known analytical solutions and no numerical ones. The goal of this paper is to present numerical solutions for the dynamics of planar superconducting cosmic string loops. In most cases, a purely dynamical approach turns out to be insufficient to describe correctly the evolution of a loop due mainly to the appearance of shocks when spacelike currents are present and kinks for timelike currents, leading to yet unaccounted for quantum effects. The consequences of the quantum effects are mostly unknown at this time because the problem requires a dynamical field theory treatment. It is however likely that ultimately the result will be massive radiation in the form of charge carriers from the string.