Optical von Neumann measurement
Quantum Physics
2009-10-30 v1
Abstract
We present an optical scheme that realizes the standard von Neumann measurement model, providing an indirect measurement of a quadrature of the field with controllable Gaussian state-reduction. The scheme is made of simple optical elements, as laser sources, beam splitters, and phase sensitive amplifiers, along with a feedback mechanism that uses a Pockels cell. We show that the von Neumann measurement is achieved without the need of working in a ultra-short pulsed regime.
Cite
@article{arxiv.quant-ph/9705021,
title = {Optical von Neumann measurement},
author = {G. M. D'Ariano and M. F. Sacchi},
journal= {arXiv preprint arXiv:quant-ph/9705021},
year = {2009}
}
Comments
One latex figure. Accepted on Phys. Lett. A