Breakdown of Luttinger liquid state in one-dimensional frustrated spinless fermion model

Details Breakdown of Luttinger liquid state in one-dimensional frustrated spinless fermion model Breakdown of Luttinger liquid state in one-dimensional frustrated spinless fermion model

1999-10-13

arxiv.org/abs/cond-mat/9910189v1

Physics

Condensed Matter

Strongly Correlated Electrons

3 pages, 4 figures, RevTex

Scientific paper

10.1103/PhysRevB.61.15534

Haldane hypothesis about the universality of Luttinger liquid (LL) behavior in conducting one-dimensional (1D) fermion systems is checked numerically for spinless fermion model with next-nearest-neighbor interactions. It is shown that for large enough interactions the ground state can be gapless (metallic) due to frustrations but not be LL. The exponents of correlation functions for this unusual conducting state are found numerically by finite-size method.

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