Coulomb interaction driven instabilities of sliding Luttinger liquids

Article

关键词: ONE-DIMENSIONAL CONDUCTORS;    SPIN-CHARGE SEPARATION;    MANY-FERMION SYSTEM;    2 COUPLED CHAINS;    MAGNETIC-FIELD;    RENORMALIZATION-GROUP;    CRYSTAL PHASES;    QUANTUM-THEORY;    ELECTRON-GAS;    MODEL;   

DOI  :  10.1103/PhysRevB.96.075131

来源: SCIE

【 摘 要 】

We study systems made of periodic arrays of one-dimensional quantum wires coupled by Coulomb interaction. Using bosonization an interacting metallic fixed point is obtained, which is shown to be a higher-dimensional analog of the Tomonaga-Luttinger liquid, or a sliding Luttinger liquid. This non-Fermi liquid metallic state, however, is unstable in the presence of weak interwire backscatterings, which favor charge density wave states and suppress pairing. Depending on the effective strength of the Coulomb repulsion and the size of interwire spacing, various charge density wave states are stabilized, including Wigner crystal states. Our method allows for the determination of the specific ordering patterns and corresponding energy and temperature scales.

【 授权许可】

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