@inproceedings{isabelle2004enhanced,
title={Enhanced binding revisited for a spinless particle in nonrelativistic QED},
author={Isabelle Catto, Pavel Exner, and Christian Hainzl},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020125313414211611},
booktitle={Journal of mathematical physics},
volume={45},
number={11},
pages={4174-4185},
year={2004},
}
Isabelle Catto, Pavel Exner, and Christian Hainzl. Enhanced binding revisited for a spinless particle in nonrelativistic QED. 2004. Vol. 45. In Journal of mathematical physics. pp.4174-4185. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020125313414211611.