title: Tunnel-induced Dipolar Resonances in a Double-well Potential.
abstract: A system of two dipolar particles that are confined in a double-well potential and interact via a realistic isotropic interaction potential is investigated as a protoype for ultracold atoms with a magnetic dipole moment or ultracold dipolar heteronuclear diatomic molecules in double-well traps or in optical lattices. The resulting energy spectrum is discussed as a function of the dipole-dipole interaction strength. The variation of the strength of the dipole-dipole interaction is found to lead to various resonance phenomena. Among those are the previously discussed inelastic confinement-induced resonances as well as the dipole-induced resonances. It is found that the double-well potential gives rise to a new type of resonances, tunnel-induced dipolar ones.
authors.affiliation: Institut für Physik, AG Moderne Optik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Bruno
authors.initials: B
authors.lastname: Schulz
authors.affiliation: Institut für Physik, AG Moderne Optik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Saenz
keywords: dipolar particles; double-well potential; isotropic interactions; resonance; ultracold molecules