New critical point induced by the axial anomaly in dense QCD

Tetsuo Hatsuda, Motoi Tachibana, Naoki Yamamoto, Gordon Baym

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Abstract

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.

Original languageEnglish
Article number122001
JournalPhysical Review Letters
Volume97
Issue number12
DOIs
Publication statusPublished - 2006
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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