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Type: Artigo de periódico
Title: Continuous measurement of atom-number moments of a Bose-Einstein condensate by photodetection
Author: Prataviera, GA
de Oliveira, MC
Abstract: We propose a measurement scheme that allows determination of even moments of a Bose-Einstein condensate (BEC) atom number, in a ring cavity, by continuous photodetection of an off-resonant quantized optical field. A fast cavity photocounting process limits the heating of atomic samples with a relatively small number of atoms, being convenient for BECs on microchip scale applications. The measurement back-action introduces a counting-conditioned phase damping, suppressing the condensate typical collapse and revival dynamics.
Country: EUA
Editor: Amer Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.70.011602
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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