@article{10_4171_dm_922,
     author = {Bernard Helffer and Ayman Kachmar},
     title = {Helical magnetic fields and semi-classical asymptotics of the lowest eigenvalue},
     journal = {Documenta mathematica},
     pages = {857--901},
     publisher = {mathdoc},
     volume = {28},
     number = {4},
     year = {2023},
     doi = {10.4171/dm/922},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/922/}
}