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Complete Pseudoparticle Operator Representation for Integrable Electronic Luttinger Liquids

By J. M. P. Carmelo, N. M. R. Peres and D. K. Campbell


We introduce the pseudoparticle operator algebra that generates all Hubbardchain eigenstates from a single reference vacuum. The occurence of only zeromomentum pseudoparticle forward scattering at all energy scales combined with the infinite pseudoparticle-number conservation laws establish this operator basis as the most suitable for dealing with transport properties at finite frequencies. We discuss the explicit form of the finite-frequency conductivity in these models

Year: 1996
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