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Phys. Rev. D 74, 056007 (2006) [7 pages]

Magnetic stability analysis for Abelian and non-Abelian superconductors

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Lianyi He,¹ Meng Jin,^1,2 and Pengfei Zhuang¹
¹Physics Department, Tsinghua University, Beijing 100084, China
²Institute of Particle Physics, Central China Normal University, Wuhan 430070, China

Received 24 August 2006; published 28 September 2006

Weinvestigate the origin of Abelian and non-Abelian type magnetic instabilitiesinduced by the Fermi surface mismatch between the two pairingfermions in a nonrelativistic model. The Abelian type instability occursonly in a gapless state and the Meissner mass squaredbecomes divergent at the gapless-gapped transition point, while the non-Abeliantype instability happens in both gapless and gapped states andthe divergence vanishes. The non-Abelian type instability can be curedin a strong coupling region.

©2006 The American Physical Society

URL:	http://link.aps.org/doi/10.1103/PhysRevD.74.056007
DOI:	10.1103/PhysRevD.74.056007
PACS:	11.30.Qc; 25.75.Nq; 74.20.-z; 74.81.-g 11.30.Qc Spontaneous and radiative symmetry breaking in particles and fields 25.75.Nq Quark deconfinement, quark-gluon plasma production, and phase transitions in heavy-ion collisions 74.20.-z Theories and models of superconducting state 74.81.-g Inhomogeneous superconductors and superconducting systems YEAR: 2006

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