| Texto completo | |
| Autor(es): |
Marchiolli, Marcelo A.
[1]
;
José, Wagner Duarte
Número total de Autores: 2
|
| Afiliação do(s) autor(es): | [1] Universidade de São Paulo (USP). Instituto de Física de São Carlos - Brasil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS; v. 337, n. 1-2, p. 89-108, Jun. 2004. |
| Resumo | |
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) | |
| Processo FAPESP: | 01/11209-0 - O formalismo de weyl-wigner em espacos de fases continuo e discreto, e a reconstrucao de estados quanticos. |
| Beneficiário: | Marcelo Aparecido Marchiolli |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 00/15084-5 - Átomos, íons e campos em armadilhas e cavidades |
| Beneficiário: | Salomon Sylvain Mizrahi |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |