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arXiv 1307.7826hep-phnucl-th
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大关联长度四夸克相互作用模型中的凝聚费米子系统

Condensated fermion system in the model of four-quark interaction with large correlation length

S. V. Molodtsov, G. M. Zinovjev

摘要:

通过对一个大关联长度的四夸克相互作用模型的研究,我们发现了幺正费米气体所特有的性质和含有费米子凝聚的费米系统所特有的反常性质。我们认为,在这种夸克系统中,费米球与费米子凝聚体之间的界面可能引起相变。我们得到的结论是,在一个实际的耦合常数区间内,不同形式的四夸克相互作用的夸克系综的动力学特性具有近似相同的行为。

英文摘要:

Studying a model of four-quark interaction with large correlation length we find out both the features peculiar an unitary fermi gas and the specific anomalous properties of the fermi systems with a fermion condensate. It is argued that a possibility of phase transition originated by interface between the Fermi sphere and fermion condensate appears in such quark systems. The results obtained could be instrumental for phenomenological applications in view of our conclusion about approximately the same behavior of the dynamical characteristics of quark ensembles with different four-quark interaction forms in a practical interval of coupling constant.

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