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arXiv 1504.07673hep-ph
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t Hooft扩展Nambu-Jona-Lasinio模型中的非均匀相

Nonuniform phases in the 't Hooft extended Nambu--Jona-Lasinio Model

J. Moreira, B. Hiller, A. A. Osipov, A. H. Blin

摘要:

本文用推广的Nambu-Jona-Lasinio模型研究了冷密夸克物质的相图。通过放松传统的均匀性假设,并考虑调制轻夸克凝聚背景,我们研究了在相图的这一区域可能存在的非均匀相位。的耦合强度的模型中的变化的影响进行了研究,它表明,列入味混合结合有限的电流质量的奇异夸克催化的外观的非均匀相,扩展域为他们的存在。

英文摘要:

The phase diagram of cold dense quark matter is studied using the 't Hooft extended Nambu--Jona-Lasinio Model applied to the light quark sector with a finite current mass for the strange quark (up and down are considered in the chiral limit). By relaxing the traditional uniformity assumptions and considering a modulated light quark condensate background we investigate the possible existence of non-uniform phases in this region of the phase diagram. The effects of changes in the coupling strengths of the model are studied and it is shown that the inclusion of flavour mixing combined with the finite current mass of the strange quark catalyses the appearance of the non-uniform phases, extending the domain for their existence.

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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