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arXiv 2103.12799hep-thhep-lat
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T Hooft-Polyakov单极子Schwinger产生的瞬子解

Instanton solution for Schwinger production of 't Hooft-Polyakov monopoles

David L. -J. Ho, Arttu Rajantie

摘要:

本文给出了在Georgi-Schwarhow SU(2)理论中对一种新的瞬子的显式数值计算结果。瞬子作为强磁场中的T Hooft-Polyakov磁单极子的Schwinger产生的介体是物理相关的。在弱场中,对产生率以前已经使用世界线近似计算,由于有限的粒子尺寸的影响,世界线近似在强场中崩溃。利用格点场论,我们已经克服了这个限制,包括所有阶的有限尺寸效应。我们表明,充分考虑内部的双金属结构的结果在一个增强的对生产率,并确认早期的结果,双金属生产成为经典的Ambjorn-Olesen临界场强。

英文摘要:

We present the results of an explicit numerical computation of a novel instanton in Georgi-Glashow SU(2) theory. The instanton is physically relevant as a mediator of Schwinger production of 't Hooft-Polyakov magnetic monopoles from strong magnetic fields. In weak fields, the pair production rate has previously been computed using the worldline approximation, which breaks down in strong fields due to the effects of finite monopole size. Using lattice field theory we have overcome this limit, including finite monopole size effects to all orders. We demonstrate that a full consideration of the internal monopole structure results in an enhancement to the pair production rate, and confirm earlier results that monopole production becomes classical at the Ambjorn-Olesen critical field strength.

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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