QCD at finite isospin density

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dc.creatorSon, D. T.
dc.creatorStephanov, M. A.
dc.date2000-05-23
dc.date2001-01-10
dc.date.accessioned2026-07-07T03:41:32Z
dc.date.available2026-07-07T03:41:32Z
dc.descriptionQCD at finite isospin chemical potential mu_I has no fermion sign problem and can be studied on the lattice. We solve this theory analytically in two limits: at low mu_I where chiral perturbation theory is applicable, and at asymptotically high mu_I where perturbative QCD works. At low isospin density the ground state is a pion condensate, whereas at high density it is a Fermi liquid with Cooper pairing. The pairs carry the same quantum numbers as the pion. This leads us to a conjecture that the transition from hadron to quark matter is smooth, which passes several tests. Our results imply a nontrivial phase diagram in the space of temperature and chemical potentials of isospin and baryon number.
dc.description4 pages, 1 figure, version to appear in PRL
dc.identifierhttps://arxiv.org/abs/hep-ph/0005225
dc.identifierhttp://arxiv.org/abs/hep-ph/0005225
dc.identifierPhys.Rev.Lett. 86 (2001) 592-595
dc.identifierdoi:10.1103/PhysRevLett.86.592
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/39617
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.subjectNuclear Theory
dc.titleQCD at finite isospin density
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