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

Abstract

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.

References in corpus (10)

• Analysis of dephasing mechanisms in a standing wave dipole trap
• Sympathetic Cooling with Two Atomic Species in an Optical Trap
• Light-Matter Quantum Interface
• Echo spectroscopy and quantum stability of trapped atoms
• Non-Destructive Probing of Rabi Oscillations on the Cesium Clock Transition near the Standard Quantum Limit
• A Continuous Non-demolition Measurement of the Cs Clock Transition Pseudo-spin
• Suppression of inhomogeneous broadening in rf spectroscopy of optically trapped atoms
• Coherent manipulation of atomic qubits in optical micropotentials
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Cited by in corpus (6)

• Quantum Memories. A Review based on the European Integrated Project "Qubit Applications (QAP)"
• Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit
• Entanglement-assisted atomic clock beyond the projection noise limit
• Long-lived periodic revivals of coherence in an interacting Bose-Einstein condensate
• Measurement and simulation of atomic motion in nanoscale optical trapping potentials
• Trap Frequency Measurement with a Pulsed Atom Laser