Macroscopic universality: Why QCD in matter is subtle

Romuald A. Janik; Maciej A. Nowak; Gábor Papp; Ismail Zahed

doi:10.1103/PhysRevLett.77.4876

Macroscopic universality: Why QCD in matter is subtle

Romuald A. Janik
, Maciej A. Nowak
, Gábor Papp
, Ismail Zahed

Physics and Astronomy

Jagiellonian University in Kraków
GSI Helmholtz Centre for Heavy Ion Research
Technische Universität Darmstadt
Eötvös Loránd University

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

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.

Original language	English
Pages (from-to)	4876-4879
Number of pages	4
Journal	Physical Review Letters
Volume	77
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.77.4876
State	Published - 1996

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title = "Macroscopic universality: Why QCD in matter is subtle",

abstract = "We use a chiral random matrix model with 2Nf 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.",

author = "Janik, \{Romuald A.\} and Nowak, \{Maciej A.\} and G{\'a}bor Papp and Ismail Zahed",

year = "1996",

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journal = "Physical Review Letters",

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AU - Janik, Romuald A.

AU - Nowak, Maciej A.

AU - Papp, Gábor

AU - Zahed, Ismail

PY - 1996

Y1 - 1996

N2 - We use a chiral random matrix model with 2Nf 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.

AB - We use a chiral random matrix model with 2Nf 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.

UR - https://www.scopus.com/pages/publications/4243769872

U2 - 10.1103/PhysRevLett.77.4876

DO - 10.1103/PhysRevLett.77.4876

M3 - Article

AN - SCOPUS:4243769872

SN - 0031-9007

VL - 77

SP - 4876

EP - 4879

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

ER -

Macroscopic universality: Why QCD in matter is subtle

Abstract

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