Squeezing arbitrary cavity-field states through their interaction with a single driven atom

Autor(es)

Villas-Bôas‚ CJ ; De Almeida‚ NG ; Serra‚ RM ; Moussa‚ MHY

• Tipo de documento: Artigo Científico
• Fonte: Physical Review A; v. 68, n. 6, p. 061801, 2003.

Resumo

We propose an implementation of the parametric amplification of an arbitrary radiation-field state previously prepared in a high-Q cavity. This nonlinear process is accomplished through the dispersive interactions of a single three-level atom (fundamental \g>, intermediate \i>, and excited \e> levels) simultaneously with (i) a classical driving field and (ii) a previously prepared cavity mode whose state we wish to squeeze. We show that, in the adiabatic approximantion, the preparation of the initial atomic state in the intermediate level \i> becomes crucial for obtaining the degenerated parametric amplification process. (AU)

• Processo FAPESP: 99/11617-0 - Teletransporte e engenharia de estados quanticos.
• Beneficiário: Celso Jorge Villas-Bôas
• Modalidade de apoio: Bolsas no Brasil - 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
• Processo FAPESP: 02/02633-6 - Tratamento de erros em processos quânticos de computação e comunicação
• Beneficiário: Roberto Menezes Serra
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado