Conditional preparation of a non-classical state in the continuous variable regime: theoretical study
Abstract
We study the characteristics of the quantum state of light produced by a conditional preparation protocol totally performed in the continuous variable regime. It relies on conditional measurements on quantum intensity correlated bright twin beams emitted by a non-degenerate OPO above threshold. Analytical expressions as well as computer simulations of the selected state properties and preparation efficiency are developed and show that a sub-Poissonian state can be produced by this technique. Projection onto a given trigger value is studied and then extended to a finite band. The continuous variable regime offers the unique possibility to improve dramatically the preparation efficiency by choosing multiple selection bands and thus to generate a great number of sub-Poissonian states in parallel.
Cite
@article{arxiv.quant-ph/0312007,
title = {Conditional preparation of a non-classical state in the continuous variable regime: theoretical study},
author = {Julien Laurat and Thomas Coudreau and Nicolas Treps and Agnes Maitre and Claude Fabre},
journal= {arXiv preprint arXiv:quant-ph/0312007},
year = {2009}
}
Comments
Submitted to Phys. Rev. A