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arXiv 1002.0452hep-lat
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Dirac算子谱的微扰方法

The Dirac operator spectrum: a perturbative approach

M. Brambilla, F. Di Renzo

摘要:

通过数值随机微扰理论计算Dirac算子谱,我们的目标是对Bank-Casher关系背后的机制的广泛接受的图片扔一些光。后者将手征凝聚物与光谱低端本征值的积累联系起来。这又可以归因于本征值之间的通常排斥机制,这是量子相互作用的典型特征。第一个结果似乎证实了NSPT确实可以使我们能够检查由于量子排斥引起的本征值的巨大重排。

英文摘要:

By computing the Dirac operator spectrum by means of Numerical Stochastic Perturbation Theory, we aim at throwing some light on the widely accepted picture for the mechanism which is behind the Bank-Casher relation. The latter relates the chiral condensate to an accumulation of eigenvalues in the low end of the spectrum. This can be in turn ascribed to the usual mechanism of repulsion among eigenvalues which is typical of quantum interactions. First results appear to confirm that NSPT can indeed enable us to inspect a huge reshuffling of eigenvalues due to quantum repulsion.

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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