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Phonons and Solitons in 1D Mott Insulators

Chun-Min Chang·A. H. Castro Neto·A. R. Bishop
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Abstract

We study the problem of one-dimensional (1D) Luttinger liquids in the insulating Mott-Hubbard phase in the presence of acoustic phonons in the semiclassical limit. We show that solitonic excitations can propagate freely in the system and the energy required to produce a soliton is reduced by a polaronic effect. We find a critical value of the electron-phonon coupling constant for which this energy vanishes.

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Chun-Min Chang, A. H. Castro Neto, A. R. Bishop. 2000-10-31. Phonons and Solitons in 1D Mott Insulators. https://doi.org/10.1103/physrevb.64.113406

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