Impurity-induced stabilization of Luttinger liquid in quasi-one-dimensional conductors

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It is shown theoretically that the Luttinger liquid can exist in quasi-one-dimensional conductors in the presence of impurities in a form of a collection of bounded Luttinger liquids. The conclusion is based on the observation by Kane and Fisher that a local impurity potential in Luttinger liquid acts, at low energies, as an infinite barrier. This leads to a discrete spectrum of collective charge and spin density fluctuations, so that interchain hopping can be considered as a small parameter at temperatures below the minimum excitation energy of the collective modes. The results are compared with recent experimental observation of a Luttinger-liquid-like behavior in thin NbSe 3 and TaS3 wires.

Original languageEnglish
Pages (from-to)277-281
Number of pages5
JournalJETP Letters
Issue number6
Publication statusPublished - 1 Dec 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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