Simultaneous generation of two spin-wave-photon entangled states in an atomic ensemble
Abstract
The generation and storage of entangled photons play important roles in quantum information technique. Spontaneous Raman scattering (SRS) in atomic ensembles provides a promising method to generate entangled photons capable of storage. In the past experiments, a spin-wave-photon entangled state is produced via SRS in an atomic ensemble, with which a pair of entangled photons is obtained. Here, we report a scheme of simultaneously generating two spin-wave-photon entangled states in an atomic ensemble by collecting Stokes photons at two different directions. Based on the obtained two atom-photon entangled sources, we generate a three-photon GHZ polarization-entangled state and conditionally prepare a polarization-entangled photon pair, respectively.
Keywords
Cite
@article{arxiv.1509.03159,
title = {Simultaneous generation of two spin-wave-photon entangled states in an atomic ensemble},
author = {Yuelong Wu and Long Tian and Zhongxiao Xu and Wei Ge and Lirong Chen and Shujing Li and Haoxiang Yuan and Yafei Wen and Hai Wang and Changde Xie and Kunchi Peng},
journal= {arXiv preprint arXiv:1509.03159},
year = {2016}
}