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arXiv 1402.3049hep-lathep-ph
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费米面失配的格点量子色动力学

Lattice QCD with mismatched Fermi surfaces

Arata Yamamoto

摘要:

在猝灭格点量子色动力学中研究了两个化学势失配的味费米子。我们首先考虑一个大的同位旋化学势,在那里一个带电的π介子凝聚,然后引入一个小的失配之间的上夸克和反下夸克的化学势。我们发现,均匀的π凝聚体被破坏的化学势的失配。我们还发现,两点关联函数显示出空间振荡,这表明一个不均匀的基态,虽然它不是无质量的,但在本模拟设置有质量。

英文摘要:

We study two flavor fermions with mismatched chemical potentials in quenched lattice QCD. We first consider a large isospin chemical potential, where a charged pion is condensed, and then introduce a small mismatch between the chemical potentials of the up quark and the anti-down quark. We find that the homogeneous pion condensate is destroyed by the mismatch of the chemical potentials. We also find that the two-point correlation function shows spatial oscillation, which indicates an inhomogeneous ground state, although it is not massless but massive in the present simulation setup.

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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