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arXiv 1102.2074hep-th
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<A^2>凝聚态与瞬子的相互作用

The interplay between the <A^2> condensate and instantons

David Vercauteren, Henri Verschelde

摘要:

利用局域复合算符方法,我们解析地研究了存在瞬子时的二维胶子凝聚。我们首先利用稀气体近似,部分地解决了瞬子物理的红外问题。然而,为了找到定量的结果,我们转向瞬子液体模型,在那里我们找到了凝聚体的两个分量:一个分量来自瞬子,第二个分量是由瞬子周围的量子涨落非微扰产生的。

英文摘要:

Using the Local Composite Operator formalism, we analytically study the dimension two gluon condensate in the presence of instantons. We first use the dilute gas approximation and partially solve the infrared problem of instanton physics. In order to find quantitative results, however, we turn to an instanton liquid model, where we find a two-component picture of the condensate: one component comes from instantons, a second component is non-perturbatively generated by quantum fluctuations around the instantons.

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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