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  • Title: Relevance of inter-composite-fermion interaction to the edge Tomonaga-Luttinger liquid.
    Author: Mandal SS, Jain JK.
    Journal: Phys Rev Lett; 2002 Aug 26; 89(9):096801. PubMed ID: 12190424.
    Abstract:
    It is shown that Wen's effective theory correctly describes the Tomonaga-Luttinger liquid at the edge of a system of noninteracting composite fermions. However, the weak residual interaction between composite fermions is found to be a relevant perturbation. The filling factor dependence of the Tomonaga-Luttinger parameter is estimated for interacting composite fermions in a microscopic approach and satisfactory agreement with experiment is achieved. It is suggested that the electron field operator may not have a simple representation in the effective one-dimensional theory.
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