Two dimensional anisotropic non Fermi-liquid phase of coupled Luttinger liquids

Details Two dimensional anisotropic non Fermi-liquid phase of coupled Luttinger liquids Two dimensional anisotropic non Fermi-liquid phase of coupled Luttinger liquids

2000-03-03

arxiv.org/abs/cond-mat/0003036v1

Physics

Condensed Matter

Strongly Correlated Electrons

(4 pages, 2 figures)

Scientific paper

10.1103/PhysRevLett.86.676

We show using bosonization techniques, that strong forward scattering interactions between one dimensional spinless Luttinger liquids (LL) can stabilize a phase where charge-density wave, superconducting and transverse single particle hopping perturbations are irrelevant. This new phase retains its LL like properties in the directions of the chains, but with relations between exponents modified by the transverse interactions, whereas, it is a perfect insulator in the transverse direction. The mechanism that stabilizes this phase are strong transverse charge density wave fluctuations at incommensurate wavevector, which frustrates crystal formation by preventing lock-in of the in-chain density waves.

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