English

From Short-Range to Contact Interactions in the 1d Bose Gas

Mathematical Physics 2020-06-24 v1 math.MP

Abstract

For a system of NN bosons in one space dimension with two-body δ\delta-interactions the Hamiltonian can be defined in terms of the usual closed semi-bounded quadratic form. We approximate this Hamiltonian in norm resolvent sense by Schr\"odinger operators with rescaled two-body potentials, and we estimate the rate of this convergence.

Keywords

Cite

@article{arxiv.1908.05705,
  title  = {From Short-Range to Contact Interactions in the 1d Bose Gas},
  author = {Marcel Griesemer and Michael Hofacker and Ulrich Linden},
  journal= {arXiv preprint arXiv:1908.05705},
  year   = {2020}
}

Comments

23 pages

R2 v1 2026-06-23T10:48:35.557Z