Squeezed Light and Entangled Images from Four-Wave-Mixing in Hot Rubidium Vapor
Abstract
Entangled multi-spatial-mode fields have interesting applications in quantum information, such as parallel quantum information protocols, quantum computing, and quantum imaging. We study the use of a nondegenerate four-wave mixing process in rubidium vapor at 795 nm to demonstrate generation of quantum-entangled images. Owing to the lack of an optical resonator cavity, the four-wave mixing scheme generates inherently multi-spatial-mode output fields. We have verified the presence of entanglement between the multi-mode beams by analyzing the amplitude difference and the phase sum noise using a dual homodyne detection scheme, measuring more than 4 dB of squeezing in both cases. This paper will discuss the quantum properties of amplifiers based on four-wave-mixing, along with the multi mode properties of such devices.
Keywords
Cite
@article{arxiv.0811.1243,
title = {Squeezed Light and Entangled Images from Four-Wave-Mixing in Hot Rubidium Vapor},
author = {Raphael C Pooser and Vincent Boyer and Alberto M. Marino and Paul D. Lett},
journal= {arXiv preprint arXiv:0811.1243},
year = {2009}
}
Comments
11 pages, 8 figures. SPIE Optics and Photonics 2008 proceeding (San Diego, CA)