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arXiv · hep-th/0208021

Dirac Spectra and Real QCD at Nonzero Chemical Potential

D. Toublan·J. J. M. Verbaarschot
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Abstract

We show that QCD Dirac spectra well below Lambda_{QCD}, both at zero and at nonzero chemical potential, can be obtained from a chiral Lagrangian. At nonzero chemical potential Goldstone bosons with nonzero baryon number condense beyond a critical value. Such superfluid phase transition is likely to occur in any system with a chemical potential with the quantum numbers of the Goldstone bosons. We discuss the phase diagram for one such system, QCD with two colors, and show the existence of a tricritical point in an effective potential approach.

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D. Toublan, J. J. M. Verbaarschot. 2002-08-02. Dirac Spectra and Real QCD at Nonzero Chemical Potential. https://doi.org/10.1142/9789812776310_0018

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