@misc{indiciae9ce9462fe66c,
  title = {Polarization entanglement purification using spatial entanglement.},
  author = {Christoph Simon and Jian-Wei Pan},
  year = {2002},
  doi = {10.1103/physrevlett.89.257901},
  url = {https://pubmed.ncbi.nlm.nih.gov/12484922/},
  note = {Source identifier: 12484922}
}