Pseudogap of Color Superconductivity | Zendy

Masakiyo Kitazawa | Zendy; T. Koide | Zendy; Teiji Kunihiro | Zendy; Yukio Nemoto | Zendy

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Pseudogap of Color Superconductivity

Author(s) -

Masakiyo Kitazawa,

T. Koide,

Teiji Kunihiro,

Yukio Nemoto

Publication year - 2004

Publication title -

progress of theoretical physics supplement

Language(s) - English

Resource type - Journals

ISSN - 0375-9687

DOI - 10.1143/ptps.153.301

Subject(s) - pseudogap , color superconductivity , physics , quasiparticle , condensed matter physics , strange matter , superconductivity , quark , density of states , fermi surface , dispersion relation , particle physics , cuprate

We show that the pseudogap of the quark density of states is formed in hotquark matter as a precursory phenomenon of the color superconductivity on thebasis of a low-energy effective theory. We clarify that the soft mode of thedi-quark pair field gives rise to a peculiar behavior of the quark dispersionrelation and a short life-time of the quasiparticles near the Fermi surface,both of which make a depression of the density of states of quarks. Our resultsuggests that the appearance of the pseudogap is a universal phenomenon ofstrong coupling superconductors, irrespective of the dimensionality.Comment: 4 pages, 4 figures, PTPTeX; Proceedings of Finite Density QCD at Nara July 10-12 2003 Nara Prefecture Public Hall Big Roof Nara Japan; v2:errors in affiliation are correcte

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