Journal
PHYSICAL REVIEW LETTERS
Volume 86, Issue 4, Pages 676-679Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.676
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Using bosonization techniques, we show that strong forward scattering interactions between one-dimensional spinless Luttinger liquids CLL can stabilize a phase where charge-density wave, superconducting, and transverse single particle hopping perturbations are irrelevant. This new phase retains its U-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 is strong transverse charge-density wave fluctuations at incommensurate wave vector, which frustrates crystal formation by preventing lock-in of the in-chain density waves. DOI: 10.1103/PhysRevLett.86.676.
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