标题： 用重叠费米子探索手征动力学 显示英文标题

标题： Exploring chiral dynamics with overlap fermions

摘要： 本报告介绍了由JLQCD和TWQCD合作组利用动力学重叠费米子开展的自发手征对称破缺的晶格研究。 我们的晶格构型是在固定的拓扑扇区生成的。 由于有限体积效应部分源于固定的全局拓扑结构，并且主要由pion场引起，因此可以通过手征微扰理论(ChPT)解析地预测晶格体积、拓扑电荷以及夸克质量的依赖关系。 我们发现晶格上计算得到的Dirac算符谱与包括有限尺寸缩放在内的ChPT预测结果具有很好的一致性，由此以较高的精度确定了手征凝聚量。 显示英文摘要

摘要： This talk presents a lattice study of spontaneous chiral symmetry breaking performed by the JLQCD and TWQCD collaborations with dynamical overlap fermions. Our lattice configurations are generated in a fixed topological sector. Since finite volume effects, partly due to the fixed global topology, are mainly induced by pion fields, the dependence on the lattice volume, topological charge and quark masses can be analytically predicted using chiral perturbation theory (ChPT). We find a good agreement of Dirac operator spectrum calculated on the lattice with the ChPT prediction including its finite size scalings, through which the chiral condensate is determined with good accuracy.