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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Engineering superpositions of displaced number states of a trapped ion

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Marchiolli, Marcelo A. [1] ; José, Wagner Duarte
Total Authors: 2
[1] Universidade de São Paulo (USP). Instituto de Física de São Carlos - Brasil
Total Affiliations: 2
Document type: Journal article
Source: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS; v. 337, n. 1-2, p. 89-108, Jun. 2004.

We present a protocol that permits the generation of a subtle superposition with 2l+1 displaced number states on a circle in phase space as target state for the center-of-mass motion of a trapped ion. Through a sequence of l cycles involving the application of laser pulses and no-fluorescence measurements, explicit expressions for the total duration of laser pulses employed in the sequence and probability of getting the ion in the upper electronic state during the l cycles are obtained and analyzed in detail. Furthermore, assuming that the effective relaxation process of a trapped ion can be described in the framework of the standard master equation for the damped harmonic oscillator, we investigate the degradation of the quantum interference effects inherent to superpositions via Wigner function. (AU)

FAPESP's process: 00/15084-5 - Atoms, ions and fields in traps and cavities
Grantee:Salomon Sylvain Mizrahi
Support type: Research Projects - Thematic Grants