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Thermodynamics of strong coupling 2-color QCD with chiral and diquark condensates
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2-color QCD (quantum chromodynamics with N_c=2) at finite temperature T and chemical potential \mu is revisited in the strong coupling limit on the lattice with staggered fermions. The phase structure in the space of T, \mu, 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 <qq>, and the quark density <q^{\dagger}q> in the T-\mu-m space. Simple analytic formulae are also derived without assuming \mu nor 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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Cited by 2 Pith papers
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Quantum phases at high chemical potential in 2-flavor matrix-QC$_2$D
In a matrix model of two-flavor two-color QCD, large baryon/isospin/chiral chemical potentials produce a web of quantum phases, including spin-1 LOFF-like states whose quark spin fraction can approach one.
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Two-color lattice QCD in $(1+1)$ dimensions with Grassmann tensor renormalization group
Grassmann tensor network simulations of 1+1D two-color lattice QCD reproduce finite-density physics and identify a candidate c=1 critical point for Wilson fermions.
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