Neutral Larkin-Ovchinnikov-Fulde-Ferrell state and chromomagnetic instability in two-flavor dense QCD

In two-flavor dense quark matter, we describe the dynamics in the single plane wave Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) state satisfying the color and electric neutrality conditions. We find that because the neutral LOFF state itself suffers from a chromomagnetic instability in the whole region...

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Bibliographic Details
Published in:Physical review letters 2006-01, Vol.96 (2), p.022005-022005, Article 022005
Main Authors: Gorbar, E V, Hashimoto, Michio, Miransky, V A
Format: Article
Language:English
Subjects:
COLOR MODEL
FLAVOR MODEL
INSTABILITY
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM CHROMODYNAMICS
QUARK MATTER
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Summary:In two-flavor dense quark matter, we describe the dynamics in the single plane wave Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) state satisfying the color and electric neutrality conditions. We find that because the neutral LOFF state itself suffers from a chromomagnetic instability in the whole region where it coexists with the (gapped or gapless) two-flavor superconducting phases, it cannot cure this instability in those phases. This is unlike the recently revealed gluonic phase which seems to be able to resolve this problem.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.96.022005