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Finite-size effects from higher conservation laws for the one-dimensional Bose gas

Journal article
Authors Erik Eriksson
Vladimir Korepin
Published in Journal of Physics A: Mathematical and Theoretical
Volume 46
Issue 23
Pages artikel nr 235002
ISSN 1751-8113
Publication year 2013
Published at Department of Physics (GU)
Pages artikel nr 235002
Language en
Links dx.doi.org/10.1088/1751-8113/46/23/...
Subject categories Condensed Matter Physics, Mathematical physics

Abstract

We consider a generalized Lieb–Liniger model, describing a one-dimensional Bose gas with all its conservation laws appearing in the density matrix. This will be the case for the generalized Gibbs ensemble, or when the conserved charges are added to the Hamiltonian. The finite-size corrections are calculated for the energy spectrum. Large-distance asymptotics of correlation functions are then determined using methods from conformal field theory.

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