title: Stark and field-born resonances of an open square well in a static external electric field.
abstract: The resonance positions, widths (inverse lifetimes), and wave functions of a square-potential well in the presence of a static electric field are calculated by using the outgoing boundary conditions. Our study concentrates on the field-born states that, unlike the well-known Stark resonances, are not associated with the field-free bound states. The effect of a lower cutoff of the static field on the field-born resonance phenomena is studied. The feasibility of experiments, where the isolated long-lived and overlapping short-lived field-born resonances can be explored, is discussed.
authors.affiliation: Center for Nonlinear Science, School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
authors.forename: Agapi
authors.initials: A
authors.lastname: Emmanouilidou
authors.forename: Nimrod
authors.initials: N
authors.lastname: Moiseyev