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arXiv 1209.5697hep-lat
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有效Polyakov线action的势与格点规范理论

The potential of the effective Polyakov line action from the underlying lattice gauge theory

Jeff Greensite

摘要:

我适应的数值方法,以前应用于调查杨米尔斯真空波泛函,从SU(N)格点规范理论,有或没有物质场提取有效的Polyakov线作用的问题。该方法可以用来寻找沿场位形空间中任何轨迹的有效Polyakov线作用量的变化;这些信息足以确定作用量中的势项,并强烈约束动力学项的可能形式。该技术说明了纯和规范希格斯SU(2)格点规范理论在有限温度下。在纯规范理论中,令人惊讶的是,对应的波利雅科夫线作用量的势除了包含与P的偶次幂成比例的预期解析项之外,还包含与|P| ^[3]成比例的非解析(但中心对称)项,其中P是波利雅科夫线在给定点的迹。

英文摘要:

I adapt a numerical method, previously applied to investigate the Yang-Mills vacuum wavefunctional, to the problem of extracting the effective Polyakov line action from SU(N) lattice gauge theories, with or without matter fields. The method can be used to find the variation of the effective Polyakov line action along any trajectory in field configuration space; this information is sufficient to determine the potential term in the action, and strongly constrains the possible form of the kinetic term. The technique is illustrated for both pure and gauge-Higgs SU(2) lattice gauge theory at finite temperature. A surprise, in the pure gauge theory, is that the potential of the corresponding Polyakov line action contains a non-analytic (yet center-symmetric) term proportional to |P|^3, where P is the trace of the Polyakov line at a given point, in addition to the expected analytic terms proportional to even powers of P.

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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