标题： 手征微扰理论与具有超立方格点费米子的QCD模拟的关系 显示英文标题

标题： Relating Chiral Perturbation Theory and QCD Simulations with Overlap Hypercube Fermions

摘要： 我们展示了具有轻子π的格点QCD的模拟结果。对于夸克场，我们应用了手征对称的格点Dirac算符，特别是重叠超立方算符，并与标准的重叠算符进行比较。这使我们可以模拟非常低的π质量。这些结果与随机矩阵理论和手征微扰理论相关，以提取有关pion衰变常数、标量凝聚和拓扑易感性的信息。 显示英文摘要

摘要： We present simulation results for lattice QCD with light pions. For the quark fields we apply chirally symmetric lattice Dirac operators, in particular the overlap hypercube operator, along with the standard overlap operator for comparison. This allows us to simulate at very low pion masses. The results are related to Random Matrix Theory and to Chiral Perturbation Theory in order to extract information about the pion decay constant, the scalar condensate and the topological susceptibility.