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arXiv 0709.4648hep-lat
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Schroedinger泛函中非厄米Wilson-Dirac算子的谱性质

Spectral properties of the non-hermitian Wilson-Dirac operator in the Schroedinger functional

Oliver Witzel, Shinji Takeda, Ulli Wolff

摘要:

我们报告了一些预备性的调查模拟的QCD薛定谔功能与非厄米多项式混合蒙特卡罗算法。半解析地计算了具有SF边界条件的非厄米自由算子的复谱。然后,它示出了如何可以获得有关信息的谱域的边界上也存在的非平凡规范场通过监测的行为的多项式在威尔逊算子上应用于随机向量。

英文摘要:

We report on some preparatory investigations for the simulation of the QCD Schroedinger functional with a non-hermitian polynomial hybrid Monte Carlo algorithm. The complex spectrum of the non-hermitean free operator with SF boundary condititons is computed semianalytically. Then it is shown how one can obtain relevant information on the boundary of the spectral domain also in the presence of nontrivial gaugefields by monitoring the behavior of polynomials in the Wilson operator applied on random vectors.

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