title: Piecewise adiabatic population transfer in a molecule via a wave packet.
abstract: We propose a class of schemes for robust population transfer between quantum states that utilize trains of coherent pulses, thus forming a generalized adiabatic passage via a wave packet. We study piecewise stimulated Raman adiabatic passage with pulse-to-pulse amplitude variation, and piecewise chirped Raman passage with pulse-to-pulse phase variation, implemented with an optical frequency comb. In the context of production of ultracold ground-state molecules, we show that with almost no knowledge of the excited potential, robust high-efficiency transfer is possible.
authors.affiliation: Department of Chemistry, The University of British Columbia, Vancouver, V6T 1Z2, Canada.
authors.forename: Evgeny A
authors.initials: EA
authors.lastname: Shapiro
authors.forename: Avi
authors.initials: A
authors.lastname: Pe'er
authors.forename: Jun
authors.initials: J
authors.lastname: Ye
authors.forename: Moshe
authors.initials: M
authors.lastname: Shapiro