title: Resonant tunneling of ultracold atoms through vacuum induced potentials
abstract: We demonstrate resonant tunneling of ultracold atoms through potentials produced by the interaction of atoms with the vacuum field of a system of cavities. We show the close connection of the transmission characteristics to the resonant states in vacuum induced potentials. Transmission of cold atoms, though sharing some features with tunneling in finite semiconductor superlattices, is strongly dependent on the coherent addition of amplitudes from various wells and barriers.
authors.affiliation: Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, India and Max-Plank Institut fur Quantenoptik, Garching, Germany.
authors.initials: GS
authors.lastname: Agarwal
authors.initials: R
authors.lastname: Arun