@misc{indiciaefe4692c784de,
  title = {Deterministic photon-photon \{radical\}(SWAP)gate using a \{Lambda\} system},
  author = {Koshino, Kazuki and Ishizaka, Satoshi and Nakamura, Yasunobu},
  year = {2010},
  doi = {10.1103/physreva.82.010301},
  url = {https://www.osti.gov/biblio/21440433},
  note = {Source identifier: 21440433}
}