Repeated backaction evading measurements: demonstration of a noiseless optical bus

Author

Levenson, Juan Ariel ; Bencheikh, Kamel ; Grangier, Ph. ; Lopez, Oscar

Author_Institution

Lab. de Bagneux, CNET, Bagneux, France

fYear

1996

fDate

7-7 June 1996

Firstpage

224

Abstract

Summary form only given. We report here repeated back action evading (BAE) experiments that clearly demonstrate all quantum nondemolition (QND) features for repeated measurements. An important feature is that each of the two BAE setups, based on pulsed type-II parametric amplifiers, also have performances that are the best achieved so far, and therefore make this demonstration more convincing. The conditional variance of the signal at the output of the first device measurement is given.

Keywords

fluctuations; measurement theory; optical noise; optical parametric amplifiers; quantum noise; quantum optics; shot noise; all quantum nondemolition feature measurements; conditional variance; noiseless optical bus; pulsed type-II parametric amplifiers; repeated backaction evading measurements; Atom optics; Atomic measurements; Noise measurement; Optical modulation; Optical noise; Optimized production technology; Phase measurement; Phase modulation; Quantum computing; Quantum mechanics;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-444-0

Type

conf

Filename

865808