A lower bound on the spectral gap of one-dimensional Schr\"odinger operators
Spectral Theory
2022-10-13 v3 Mathematical Physics
Classical Analysis and ODEs
math.MP
Abstract
In this note we provide an explicit lower bound on the spectral gap of one-dimensional Schr\"odinger operators with non-negative bounded potentials and subject to Neumann boundary conditions.
Cite
@article{arxiv.2102.03816,
title = {A lower bound on the spectral gap of one-dimensional Schr\"odinger operators},
author = {Joachim Kerner},
journal= {arXiv preprint arXiv:2102.03816},
year = {2022}
}
Comments
Improved results; title and text amended accordingly; comments welcome!