Journal Article

PreJuSER-28836

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Dense QCD : Overhause or BCS paring?

Park, B. ; Rho, M. ; Wirzba, A.FZJ* ; Zahed, I.

2000
Soc. [S.l.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/2383

Abstract: We discuss the Overhauser effect (particle-hole pairing) versus the BCS effect (particle-particle or hole-hole pairing) in QCD at large quark density. In weak coupling and to leading logarithm accuracy, the pairing energies can be estimated exactly. For a small number of colors, the BCS effect overtakes the Overhauser effect, while for a large number of colors the opposite takes place, in agreement with a recent renormalization group argument. In strong coupling with large pairing energies, the Overhauser effect may be dominant for any number of colors, suggesting that QCD may crystallize into an insulator at a few times nuclear matter density, a situation reminiscent of dense Skyrmions. The Overhauser effect is dominant in QCD in 1+1 dimensions, although susceptible to quantum effects. It is sensitive to temperature in all dimensions.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut für Kernphysik (IKP)

Research Program(s):

1. Theoretische Kernphysik (20.80.0)

Appears in the scientific report 2000
Notes: This version is available at the following Publisher URL: http://prd.aps.org

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