Four Photon Entanglement from Down Conversion
量子物理
2009-11-07 v1
摘要
Double-pair emission from type-II parametric down conversion results in a highly entangled 4-photon state. Due to interference, which is similar to bunching from thermal emission, this state is not simply a product of two pairs. The observation of this state can be achieved by splitting the two emission modes at beam splitters and subsequent detection of a photon in each output. Here we describe the features of this state and give a Bell theorem for a 4-photon test of local realistic hidden variable theories.
引用
@article{arxiv.quant-ph/0103049,
title = {Four Photon Entanglement from Down Conversion},
author = {Harald Weinfurter and Marek Zukowski},
journal= {arXiv preprint arXiv:quant-ph/0103049},
year = {2009}
}
备注
5 pages, 1 figure, submitted to PRA