Chiral symmetry breaking and phase fluctuations: A QED(3) theory of the pseudogap state in cuprate superconductors

Article

关键词: QUASI-PARTICLES;    UNCONVENTIONAL SUPERCONDUCTORS;    FERMI-LIQUID;    BI2SR2CACU2O8+DELTA;    ELECTRODYNAMICS;   

DOI  :  10.1103/PhysRevB.65.180511

来源: SCIE

【 摘 要 】

A d-wave superconductor, its phase coherence progressively destroyed by unbinding of vortex-antivortex pairs, suffers an instability related to chiral-symmetry breaking in QED(3). The chiral manifold exhibits large degeneracy spanned by physical states acting as inherent competitors of d-wave superconductivity. Two of these states are associated with antiferromagnetic insulator and stripe phases, known to be stable in the pseudogap regime of cuprates near half-filling. The theory also predicts an additional, yet unobserved state: a d+ip phase-incoherent superconductor.

【 授权许可】

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