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arXiv · 1311.6704

BCS-BEC crossover in relativistic Fermi systems

Lianyi He·Shijun Mao·Pengfei Zhuang
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Abstract

We review the BCS-BEC crossover in relativistic Fermi systems, including the QCD matter at finite density. In the first part we study the BCS-BEC crossover in a relativistic four-fermion interaction model and show how the relativistic effect affects the BCS-BEC crossover. In the second part, we investigate both two-color QCD at finite baryon density and pion superfluid at finite isospin density, by using an effective Nambu--Jona-Lasinio model. We will show how the model describes the weakly interacting diquark and pion condensates at low density and the BEC-BCS crossover at high density.

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Lianyi He, Shijun Mao, Pengfei Zhuang. 2013-11-26. BCS-BEC crossover in relativistic Fermi systems. https://doi.org/10.1142/s0217751x13300548

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