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arXiv · hep-ph/9606329

Macroscopic Universality : Why QCD in Matter is Subtle?

Romuald A. Janik·Maciej A. Nowak·Gábor Papp·Ismail Zahed
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Abstract

We use a chiral random matrix model with 2N_f flavors to mock up the QCD Dirac spectrum at finite chemical potential. We show that the 1/N approximation breaks down in the quenched state with spontaneously broken chiral symmetry. The breakdown condition is set by the divergence of a two-point function, that is shown to follow the general lore of macroscopic universality. In this state, the fermionic fluctuations are not suppressed in the large N limit.

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Romuald A. Janik, Maciej A. Nowak, Gábor Papp, Ismail Zahed. 1997-01-10. Macroscopic Universality : Why QCD in Matter is Subtle?. https://doi.org/10.1103/physrevlett.77.4876

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