New Critical Point Induced By the Axial Anomaly in Dense QCD

Journal Article · Fri Sep 22 00:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.122001· OSTI ID:20860847

Hatsuda, Tetsuo; Yamamoto, Naoki ^[1]; Tachibana, Motoi ^[2]; Baym, Gordon ^[3]

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1. Department of Physics, University of Tokyo (Japan)
2. Department of Physics, Saga University, Saga 840-8502 (Japan)
3. Department of Physics, University of Illinois, 1110 W. Green St., Urbana, Illinois 61801 (United States)

We study the interplay between chiral and diquark condensates within the framework of the Ginzburg-Landau free energy, and classify possible phase structures of two and three-flavor massless QCD. The QCD axial anomaly acts as an external field applied to the chiral condensate in a color superconductor and leads to a crossover between the broken chiral symmetry and the color superconducting phase, and, in particular, to a new critical point in the QCD phase diagram.

• OSTI ID: 20860847
• Journal Information: Physical Review Letters, Vol. 97, Issue 12; Other Information: DOI: 10.1103/PhysRevLett.97.122001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CHIRALITY
COLOR MODEL
FLAVOR MODEL
FREE ENERGY
GINZBURG-LANDAU THEORY
PHASE DIAGRAMS
QUANTUM CHROMODYNAMICS
SUPERCONDUCTORS