Phase Structure of Two-Flavor QCD at Finite Chemical Potential

Journal Article · Fri Jan 14 00:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.022002· OSTI ID:21532239

Braun, Jens ^[1]; Haas, Lisa M; Pawlowski, Jan M ^[2]; Marhauser, Florian ^[3]

---

1. Theoretisch-Physikalisches Institut, Friedrich-Schiller University Jena, Max-Wien-Platz 1, 07743 Jena (Germany)
2. Institut fuer Theoretische Physik, University of Heidelberg, Philosophenweg 16, 62910 Heidelberg (Germany)
3. ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum fuer Schwerionenforschung, Planckstr. 1, 64291 Darmstadt (Germany)

We study the phase diagram of two-flavor QCD at imaginary chemical potentials in the chiral limit. To this end we compute order parameters for chiral symmetry breaking and quark confinement. The interrelation of quark confinement and chiral symmetry breaking is analyzed with a new order parameter for the confinement phase transition. We show that it is directly related to both the quark density as well as the Polyakov loop expectation value. Our analytical and numerical results suggest a close relation between the chiral and the confinement phase transition.

• OSTI ID: 21532239
• Journal Information: Physical Review Letters, Vol. 106, Issue 2; Other Information: DOI: 10.1103/PhysRevLett.106.022002; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BAG MODEL
CHIRAL SYMMETRY
CHIRALITY
CONFINEMENT
DENSITY
EXPECTATION VALUE
FLAVOR MODEL
ORDER PARAMETERS
PHASE TRANSFORMATIONS
POTENTIALS
QUANTUM CHROMODYNAMICS
QUARKS
SYMMETRY BREAKING
COMPOSITE MODELS
DIMENSIONLESS NUMBERS
EXTENDED PARTICLE MODEL
FERMIONS
FIELD THEORIES
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUANTUM FIELD THEORY
QUARK MODEL
SYMMETRY