Spontaneous current generation in the gapless 2SC phase

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dc.creatorHuang, Mei
dc.date2005-04-26
dc.date2006-01-26
dc.date.accessioned2026-07-07T11:31:47Z
dc.date.available2026-07-07T11:31:47Z
dc.descriptionIt is found that, except chromomagnetic instability, the gapless 2SC phase also exhibits a paramagnetic response to the perturbation of an external color neutral baryon current. The spontaneously generated baryon current driven by the mismatch is equivalent to the one-plane wave LOFF state. We describe the 2SC phase in the nonlinear realization framework, and show that each instability indicates the spontaneous generation of the corresponding pseudo Nambu-Golstone current. We show this Nambu-Goldstone currents generation state covers the gluon phase as well as the one-plane wave LOFF state. We further point out that, when charge neutrality condition is required, there exists a narrow unstable LOFF (Us-LOFF) window, where not only off-diagonal gluons but the diagonal 8-th gluon cannot avoid the magnetic instability. We discuss that the diagonal magnetic instability in this Us-LOFF window cannot be cured by off-diagonal gluon condensate in color superconducting phase, and it will also show up in some constrained Abelian asymmetric superfluid/superconducting system.
dc.description8 pages, no figure, final version to appear in PRD
dc.identifierhttps://arxiv.org/abs/hep-ph/0504235
dc.identifierhttp://arxiv.org/abs/hep-ph/0504235
dc.identifierPhys.Rev.D73:045007,2006
dc.identifierdoi:10.1103/PhysRevD.73.045007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197385
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectSuperconductivity
dc.subjectNuclear Theory
dc.titleSpontaneous current generation in the gapless 2SC phase
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