Echo Spectroscopy of Atomic Dynamics in a Gaussian Trap via Phase Imprints

Details Echo Spectroscopy of Atomic Dynamics in a Gaussian Trap via Phase Imprints Echo Spectroscopy of Atomic Dynamics in a Gaussian Trap via Phase Imprints

2008-07-01

arxiv.org/abs/0807.0254v1

Eur. Phys. J. D 50, 67 (2008)

Physics

Quantum Physics

Scientific paper

10.1140/epjd/e2008-00192-1

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.

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