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Bulletin of the American Physical Society

New soluble model of interacting fermions in one-dimension

Seth Grable, Noah Kamm, Harsh Mathur

Published Mar 16, 2021• 0 citations
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Renormalization Group and Exact Solubility in One Dimension: Generalized Sutherland Model

Eugene B. Kolomeisky

We introduce a generalized Sutherland model: a system of one-dimensional fermions or bosons interacting by a two-body potential which has a short-range interaction of finite range and amplitude, and an inverse-square tail. Using renromalization-group arguments we analyze the ground-state and correlation properties of this family of models. We reproduce known exact results as special cases of the general model and point out a correspondence between the exactly solvable problems and special initial or final conditions of the renormalization transformation, which we believe to be a general criterion. This enables us to predict a series of new presumably exact results.

Physical Review Letters•Sep 19, 1994•5 citations
We introduce a generalized Sutherland model: a system of one-dimensional fermions or bosons interacting by a two-body potential which has a short-range interaction of finite range and amplitude, and an inverse-square tail. Using renromalization-group arguments we analyze the ground-state and correlation properties of this family of models. We reproduce known exact results as special cases of the general model and point out a correspondence between the exactly solvable problems and special initial or final conditions of the renormalization transformation, which we believe to be a general criterion. This enables us to predict a series of new presumably exact results.