title: Inhibition of decoherence due to decay in a continuum.
abstract: We propose a scheme for slowing down decay into a continuum. We make use of a sequence of ultrashort 2pi pulses applied on an auxiliary transition of the system so that there is a destructive interference between the two transition amplitudes--one before the application of the pulse and the other after the application of the pulse. We give explicit results for a structured continuum. Our scheme can also inhibit unwanted transitions.
authors.affiliation: Physical Research Laboratory, Navrangpura, Ahmedabad-380009, India and Max-Planck-Institut Für Quantenoptik, D-85748 Garching, Germany.
authors.forename: G S
authors.initials: GS
authors.lastname: Agarwal
authors.forename: M O
authors.initials: MO
authors.lastname: Scully
authors.forename: H
authors.initials: H
authors.lastname: Walther