Suppression of Dephasing of Optically Trapped Atoms

Abstract

Ultra-cold atoms trapped in an optical dipole trap and prepared in a coherent superposition of their hyperfine ground states, decohere as they interact with their environment. We demonstrate than the loss in coherence in an "echo" experiment, which is caused by mechanisms such as Rayleigh scattering, can be suppressed by the use of a new pulse sequence. We also show that the coherence time is then limited by mixing to other vibrational levels in the trap and by the finite lifetime of the internal quantum states of the atoms.

References in corpus (5)

• Precision measurement and compensation of optical Stark shifts for an ion-trap quantum processor
• Coherence properties and quantum state transportation in an optical conveyor belt
• Echo spectroscopy and quantum stability of trapped atoms
• Suppression of inhomogeneous broadening in rf spectroscopy of optically trapped atoms
• Echo spectroscopy and Atom Optics Billiards

Cited by in corpus (7)

• Control of decoherence in the generation of photon pairs from atomic ensembles
• Digital atom interferometer with single particle control on a discretized spacetime geometry
• Scalability of quantum computation with addressable optical lattices
• Hyperfine Spectroscopy of Optically Trapped Atoms
• Suppression of Phase Decoherence in a Single Atomic Qubit
• Coherence of a dynamically decoupled single neutral atom
• Transmission spectroscopy of a single atom in the presence of tensor light shifts