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

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arxiv hep-ph/0306066 v2 pith:LD26BPEM submitted 2003-06-07 hep-ph hep-latnucl-th

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

classification hep-ph hep-latnucl-th
keywords colorchiralcondensatecouplingdiquarkquarkspacestrong
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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  1. Quantum phases at high chemical potential in 2-flavor matrix-QC$_2$D

    hep-th 2026-07 conditional novelty 6.0

    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.