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Abstract:

The interplay of noise and quantum coherence in transport gives rise to rich dynamics relevant for a variety of systems. In this work, we put forward a proposal for an experiment testing noise-induced transport in the vibrational modes of a chain of trapped ions. We focus on the case of transverse modes, considering multiple-isotope chains and an "angle trap," where the transverse trapping varies along the chain. This variation induces localization of the motional modes and therefore suppresses transport. By suitably choosing the action of laser fields that couple to the internal and external degrees of freedom of the ions, we show how to implement effective local dephasing on the modes, broadening the vibrational resonances. This leads to an overlap of the local mode frequencies, giving rise to a pronounced increase in the transport of excitations along the chain. We propose an implementation and measurement scheme which require neither ground-state cooling nor low heating rates, and we illustrate our results with a simulation of the dynamics for a chain of three ions. © 2016 American Physical Society.

Registro:

Documento: Artículo
Título:Noise-induced transport in the motion of trapped ions
Autor:Cormick, C.; Schmiegelow, C.T.
Filiación:Instituto de Física Enrique Gaviola, CONICET, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, X5016LAE, Argentina
Departamento de Física, FCEyN, UBA, IFIBA, CONICET, Ciudad Universitaria, Pabellón 1, Buenos Aires, 1428, Argentina
Palabras clave:Chains; Degrees of freedom (mechanics); Ground state; Ions; Quantum chemistry; Quantum theory; Experiment testing; Ground state cooling; Local mode frequency; Noise-induced transport; Quantum coherence; Transverse mode; Vibrational modes; Vibrational resonance; Trapped ions
Año:2016
Volumen:94
Número:5
DOI: http://dx.doi.org/10.1103/PhysRevA.94.053406
Título revista:Physical Review A
Título revista abreviado:Phys. Rev. A
ISSN:24699926
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24699926_v94_n5_p_Cormick

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Citas:

---------- APA ----------
Cormick, C. & Schmiegelow, C.T. (2016) . Noise-induced transport in the motion of trapped ions. Physical Review A, 94(5).
http://dx.doi.org/10.1103/PhysRevA.94.053406
---------- CHICAGO ----------
Cormick, C., Schmiegelow, C.T. "Noise-induced transport in the motion of trapped ions" . Physical Review A 94, no. 5 (2016).
http://dx.doi.org/10.1103/PhysRevA.94.053406
---------- MLA ----------
Cormick, C., Schmiegelow, C.T. "Noise-induced transport in the motion of trapped ions" . Physical Review A, vol. 94, no. 5, 2016.
http://dx.doi.org/10.1103/PhysRevA.94.053406
---------- VANCOUVER ----------
Cormick, C., Schmiegelow, C.T. Noise-induced transport in the motion of trapped ions. Phys. Rev. A. 2016;94(5).
http://dx.doi.org/10.1103/PhysRevA.94.053406