Strong low-frequency quantum correlations from a four-wave mixing amplifier
量子物理
2009-11-13 v2
摘要
We show that a simple scheme based on nondegenerate four-wave mixing in a hot atomic vapor behaves like a near-perfect phase-insensitive optical amplifier, which can generate bright twin beams with a measured quantum noise reduction in the intensity difference of more than 8 dB, close to the best optical parametric amplifiers and oscillators. The absence of a cavity makes the system immune to external perturbations, and the strong quantum noise reduction is observed over a large frequency range.
引用
@article{arxiv.quant-ph/0703111,
title = {Strong low-frequency quantum correlations from a four-wave mixing amplifier},
author = {C. F. McCormick and A. M. Marino and V. Boyer and P. D. Lett},
journal= {arXiv preprint arXiv:quant-ph/0703111},
year = {2009}
}
备注
4 pages, 4 figures. Major rewrite of the previous version. New experimental results and further analysis