Transport of ultracold atoms between concentric traps via spatial adiabatic passage

J. Polo, A. Benseny, Th Busch, V. Ahufinger, J. Mompart

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9 Citations (Scopus)

Abstract

© 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Spatial adiabatic passage processes for ultracold atoms trapped in tunnel-coupled cylindrically symmetric concentric potentials are investigated. Specifically, we discuss the matter-wave analog of the rapid adiabatic passage (RAP) technique for a high fidelity and robust loading of a single atom into a harmonic ring potential from a harmonic trap, and for its transport between two concentric rings. We also consider a system of three concentric rings and investigate the transport of a single atom between the innermost and the outermost rings making use of the matter-wave analog of the stimulated Raman adiabatic passage (STIRAP) technique. We describe the RAP-like and STIRAP-like dynamics by means of a two- and a three-state model, respectively, obtaining good agreement with the numerical simulations of the corresponding two-dimensional Schrödinger equation.
Original languageEnglish
Article number015010
JournalNew Journal of Physics
Volume18
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • atomtronics
  • ring potentials
  • spatial adiabatic passage
  • ultracold atoms

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