Diquark bose condensates in high density matter and instantons

R. Rapp; T. Schäfer; E. Shuryak; M. Velkovsky

doi:10.1103/PhysRevLett.81.53

Diquark bose condensates in high density matter and instantons

R. Rapp
, T. Schäfer
, E. Shuryak
, M. Velkovsky

Physics and Astronomy

Stony Brook University
University of Washington
Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

916 Scopus citations

Abstract

Instantons lead to strong correlations between up and down quarks with spin zero and antisymmetric color wave functions. In cold and dense matter, n_b > n_c ≃1fm⁻³ and T < T_c∼5 MeV, these pairs Bose condense, replacing the usual (qq) condensate and restoring chiral symmetry. At high density, the ground state is a color superconductor in which diquarks play the role of Cooper pairs. An interesting toy model is provided by QCD with two colors: it has a particle-antiparticle symmetry which relates (qq) and (qq) condensates.

Original language	English
Pages (from-to)	53-56
Number of pages	4
Journal	Physical Review Letters
Volume	81
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.81.53
State	Published - 1998

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10.1103/PhysRevLett.81.53

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AU - Rapp, R.

AU - Schäfer, T.

AU - Shuryak, E.

AU - Velkovsky, M.

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Y1 - 1998

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AB - Instantons lead to strong correlations between up and down quarks with spin zero and antisymmetric color wave functions. In cold and dense matter, nb > nc ≃1fm−3 and T < Tc∼5 MeV, these pairs Bose condense, replacing the usual (qq) condensate and restoring chiral symmetry. At high density, the ground state is a color superconductor in which diquarks play the role of Cooper pairs. An interesting toy model is provided by QCD with two colors: it has a particle-antiparticle symmetry which relates (qq) and (qq) condensates.

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Diquark bose condensates in high density matter and instantons

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