QCD at high baryon density in a random matrix model

  • S. Pepin
  • A. Schäfer


A high-density diquark phase seems to be a generic feature of QCD. If so it should also be reproduced by random matrix models. We discuss a specific one in which the random matrix elements of the Dirac operator are supplemented by a finite chemical potential and by non-random elements which model the formation of instanton-anti-instanton molecules. Comparing our results to those found in a previous investigation by Vanderheyden and Jackson we find additional support for our starting assumption, namely that the existence of a high-density diquark phase is common to all QCD-like model.

PACS. 11.30.Rd Chiral symmetries – 12.38.Mh Quark-gluon plasma – 12.38.Aw General properties of QCD (dynamics, confinement, etc.) 


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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2001

Authors and Affiliations

  • S. Pepin
    • 1
  • A. Schäfer
    • 2
  1. 1.Max-Planck-Institut für Kernphysik, Postfach 103980, D-69029 Heidelberg, GermanyDE
  2. 2.Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, GermanyDE

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