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Thermodynamics of strong coupling 2-color QCD with chiral and diquark condensates

Yusuke Nishida·Kenji Fukushima·Tetsuo Hatsuda
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Abstract

2-color QCD (quantum chromodynamics with N_c=2) at finite temperature T and chemical potential μis revisited in the strong coupling limit on the lattice with staggered fermions. The phase structure in the space of T, μ, and the quark mass m is elucidated with the use of the mean field approximation and the 1/d expansion (d being the number of spatial dimensions). We put special emphasis on the interplay among the chiral condensate <\bar{q}q>, the diquark condensate , and the quark density in the T-μ-m space. Simple analytic formulae are also derived without assuming μnor m being small. Qualitative comparisons are made between our results and those of recent Monte-Carlo simulations in 2-color QCD.

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Yusuke Nishida, Kenji Fukushima, Tetsuo Hatsuda. 2004-06-14. Thermodynamics of strong coupling 2-color QCD with chiral and diquark condensates. https://doi.org/10.1016/j.physrep.2004.05.005

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