Dyson-Schwinger Equation and Quantum Phase Transitions in Massless QCD

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dc.creatorYuan, Wei
dc.creatorChen, Huan
dc.creatorLiu, Yu-xin
dc.date2007-11-02
dc.date.accessioned2026-07-07T11:03:47Z
dc.date.available2026-07-07T11:03:47Z
dc.descriptionWe study the stability of the highest symmetric solution (Wigner-solution) of Dyson-Schwinger equations in chiral limit and at zero temperature. Our results confirm that if the chemical potential is not very large, the QCD vacuum is in the chiral symmetry breaking phase and the quantum phase-transition of the chiral symmetry restoration is in first order. Meanwhile it seems that there is not competition between chiral symmetry breaking phase and color superconductivity phase since the color superconductivity phase appears only if the chemical potential is very large. Moreover, we propose that chiral symmetry breaking arises from the positive feedback with respect to the mass perturbation.
dc.description12 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0711.0363
dc.identifierhttp://arxiv.org/abs/0711.0363
dc.identifierPhys.Lett.B637:69-74,2006
dc.identifierdoi:10.1016/j.physletb.2006.03.076
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188664
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDyson-Schwinger Equation and Quantum Phase Transitions in Massless QCD
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