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Regular version of the site

Article

The generalized t-V model in one dimension

Journal of Physics: Conference Series. 2015. Vol. 592. P. 012057.
Burovski E., Szyniszewski, M.

 We develop a systematic strong coupling approach for studying an extended t-V model with interactions of a finite range. Our technique is not based on the Bethe ansatz and is applicable to both integrable and non-integrable models. We illustrate our technique by presenting analytic results for the ground state energy (up to order 7 in t/V), the current density and density-density correlations for integrable and non-integrable models with commensurate filling factors. We further present preliminary numerical results for incommensurate non- integrable models.