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arXiv 2108.06353hep-phnucl-th
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双味无质量QCD体系中瞬子-双子相互作用包体的手征对称性破缺和限制

Chiral Symmetry Breaking and Confinement from an Interacting Ensemble of Instanton-dyons in Two-flavor Massless QCD

Dallas DeMartini, Edward Shuryak

摘要:

在这项工作中,我们提出了一个相互作用的整体的$SU(3)$规范与$N_f=2$口味的无质量夸克的结果从数值模拟的结果。通过在拓扑零模的子空间中计算的费米子行列式所引起的有效相互作用,动力学夸克被包括在内。狄拉克算子的本征值谱在不同的体积进行了研究,以提取手征凝聚和本征值间隙,这两个观测值提供了一致的值的手征转变温度$T_c$。我们发现,一个足够的密度的双子是负责产生的限制势和破坏的手征对称性,这两者都是兼容的二级跃迁。

英文摘要:

In this work we present the results from numerical simulations of an interacting ensemble of instanton-dyons in the $SU(3)$ gauge group with $N_f=2$ flavors of massless quarks. Dynamical quarks are included via the effective interactions induced by the fermionic determinant evaluated in the subspace of topological zero modes. The eigenvalue spectrum of the Dirac operator is studied at different volumes to extract the chiral condensate and eigenvalue gap, with both observables providing consistent values of the chiral transition temperature $T_c$. We find that a sufficient density of dyons is responsible for generating the confining potential and breaking the chiral symmetry, both of which are compatible with second-order transitions.

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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