It is shown that in a double-cavity, two-dimensional electron waveguide, the interplay between quasi-bound states of each cavity leads to the appearance of bound states in continuum for certain distances between the cavities. These bound states may be used to trap electrons in de-localized states distributed in both cavities.
@article{arxiv.quant-ph/0504142,
title = {Bound states in continuum in an electron waveguide},
author = {Kyungsun Na and Gonzalo Ordonez and Sungyun Kim},
journal= {arXiv preprint arXiv:quant-ph/0504142},
year = {2013}
}