Quantum interference of ultrastable twin optical beams
量子物理
2009-11-10 v2
摘要
We report the first measurement of the quantum phase-difference noise of an ultrastable nondegenerate optical parametric oscillator that emits twin beams classically phase-locked at exact frequency degeneracy. The measurement illustrates the property of a lossless balanced beam-splitter to convert number-difference squeezing into phase-difference squeezing and, thus, provides indirect evidence for Heisenberg-limited interferometry using twin beams. This experiment is a generalization of the Hong-Ou-Mandel interference effect for continuous variables and constitutes a milestone towards continuous-variable entanglement of bright, ultrastable nondegenerate beams.
引用
@article{arxiv.quant-ph/0310002,
title = {Quantum interference of ultrastable twin optical beams},
author = {Sheng Feng and Olivier Pfister},
journal= {arXiv preprint arXiv:quant-ph/0310002},
year = {2009}
}
备注
4 pages, 4 figs, accepted by Phys. Rev. Lett