Echo spectroscopy of atomic dynamics in a Gaussian trap via phase imprints

Daniel Oblak, J. Appel, Patrick Joachim Windpassinger, Ulrich Busk Hoff, Niels Kjærgaard, E.S. Polzik

Research output: Contribution to journalJournal articleResearchpeer-review


We report on the collapse and revival of Ramsey fringe visibility when a spatially dependent phase is imprinted in the coherences of a trapped ensemble of two-level atoms. The phase is imprinted via the light shift from a Gaussian laser beam which couples the dynamics of internal and external degrees of freedom for the atoms in an echo spectroscopy sequence. The observed revivals are directly linked to the oscillatory motion of atoms in the trap. An understanding of the effect is important for quantum state engineering of trapped atoms.
Original languageEnglish
JournalThe European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics
Pages (from-to)67–73
Publication statusPublished - 2015
Externally publishedYes

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