Tight upper and lower bounds to the eigenvalues and critical parameters of a double well
Quantum Physics
2016-07-14 v1 Mathematical Physics
math.MP
Abstract
By means of a suitable rational approximation to the logarithmic derivative of the wavefunction we obtain tight upper and lower bounds to the eigenvalues and critical parameters of the quartic double-well potential.
Keywords
Cite
@article{arxiv.1607.03692,
title = {Tight upper and lower bounds to the eigenvalues and critical parameters of a double well},
author = {Francisco M. Fernández},
journal= {arXiv preprint arXiv:1607.03692},
year = {2016}
}