Erratum: Coherence Properties and Quantum State Transportation in an Optical Conveyor Belt [Phys. Rev. Lett.<b>91</b>, 213002 (2003)]

Kuhr, Stefan; Alt, Wolfgang; Schrader, D.; Dotsenko, Igor; Miroshnychenko, Yevhen; Rosenfeld, Wenjamin; Khudaverdyan, M.; Gomer, V.; Rauschenbeutel, Arno; Meschede, Dieter

doi:10.1103/physrevlett.95.099901

Cited by 49 publications

(86 citation statements)

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“…Both laser beams are sent through acoustooptic modulators (AOMs), to mutually detune them for the realization of a moving standing wave. This "optical conveyor-belt" was introduced in previous experiments [9,10] and has been used for the demonstration of quantum state transportation [11]. For the experiments in this paper, however, we do not transport the trapped atoms.…”

Section: Experimental Tools a Setupmentioning

confidence: 99%

Analysis of dephasing mechanisms in a standing-wave dipole trap

et al. 2005

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We study in detail the mechanisms causing dephasing of hyperfine coherences of cesium atoms confined by a far off-resonant standing wave optical dipole trap [S. Kuhr et al., Phys. Rev. Lett. 91, 213002 (2003)]. Using Ramsey spectroscopy and spin echo techniques, we measure the reversible and irreversible dephasing times of the ground state coherences. We present an analytical model to interpret the experimental data and identify the homogeneous and inhomogeneous dephasing mechanisms. Our scheme to prepare and detect the atomic hyperfine state is applied at the level of a single atom as well as for ensembles of up to 50 atoms.

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Section: Experimental Tools a Setupmentioning

confidence: 99%

Analysis of dephasing mechanisms in a standing-wave dipole trap

et al. 2005

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“…(15). A variant of this case is vertical transport with a gravity force, so that F = mω 2 0 q 0 − mg and Eq.…”

Section: A Main Casesmentioning

confidence: 99%

“…(16), the following boundary conditions, (22) the last conditions in each line being determined by consistency with Eq. (15). q c (t) is then interpolated by assuming some flexible functional form, such as a polynomial, q c (t) = 5 n=0 β n t n , where the β n are found by solving the system of equations established by the boundary conditions.…”

Section: A Harmonic Transportmentioning

confidence: 99%

“…Neutral atoms have been transported as thermal atomic clouds [6,13], condensates [14], or individually [15,16], using magnetic, or optical traps. The magnetic traps can be translated by moving the coils mechanically [5], by timevarying currents in a lithographic conductor pattern [17], or on a conveyor belt with a chain of permanent magnets [18].…”

Section: Introductionmentioning

confidence: 99%

“…The magnetic traps can be translated by moving the coils mechanically [5], by timevarying currents in a lithographic conductor pattern [17], or on a conveyor belt with a chain of permanent magnets [18]. Optical traps can be used as optical tweezers whose focal point is translated by moving mechanically lenses [4,19], or by traveling lattices (conveyor belts) made with two counterpropagating beams slightly detuned one respect to each other [15,16,20]. There are also mixed magneto-optical approaches [6].…”

Section: Introductionmentioning

confidence: 99%

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Fast atomic transport without vibrational heating

et al. 2011

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We use the dynamical invariants associated with the Hamiltonian of an atom in a one dimensional moving trap to inverse engineer the trap motion and perform fast atomic transport without final vibrational heating. The atom is driven non-adiabatically through a shortcut to the result of adiabatic, slow trap motion. For harmonic potentials this only requires designing appropriate trap trajectories, whereas perfect transport in anharmonic traps may be achieved by applying an extra field to compensate the forces in the rest frame of the trap. The results can be extended to atom stopping or launching. The limitations due to geometrical constraints, energies and accelerations involved are analyzed, as well as the relation to previous approaches (based on classical trajectories or "fast-forward" and "bang-bang" methods) which can be integrated in the invariant-based framework.

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