Macroscopic Universality : Why QCD in Matter is Subtle?

Details Macroscopic Universality : Why QCD in Matter is Subtle? Macroscopic Universality : Why QCD in Matter is Subtle?

1996-06-13

arxiv.org/abs/hep-ph/9606329v2

Phys.Rev.Lett. 77 (1996) 4876-4879

Physics

High Energy Physics

High Energy Physics - Phenomenology

Title changed in published version

Scientific paper

10.1103/PhysRevLett.77.4876

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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