Superconductivity from perturbative one-gluon exchange in high density quark matter

Thomas Schäfer, Frank Wilczek

Research output: Contribution to journalArticlepeer-review

250 Scopus citations


We study color superconductivity in QCD at an asymptotically large chemical potential. In this limit, pairing is dominated by perturbative one-gluon exchange. We derive the Eliashberg equation for the pairing gap and solve this equation numerically. Taking into account both magnetic and electric gluon exchanges, we find (Formula presented) with (Formula presented) verifying a recent result by Son. For chemical potentials that are of physical interest, (Formula presented) the calculation ceases to be reliable quantitatively, but our results suggest that the gap can be as large as 100 MeV.

Original languageEnglish (US)
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number11
StatePublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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