English

Truly unentangled photon pairs without spectral filtering

Optics 2017-10-05 v1 Quantum Physics

Abstract

We demonstrate that an integrated silicon microring resonator is capable of efficiently producing photon pairs that are completely unentangled; such pairs are a key component of heralded single photon sources. A dual-channel interferometric coupling scheme can be used to independently tune the quality factors associated with the pump and signal and idler modes, yielding a biphoton wavefunction with Schmidt number arbitrarily close to unity. This will permit the generation of heralded single photon states with unit purity.

Keywords

Cite

@article{arxiv.1703.10626,
  title  = {Truly unentangled photon pairs without spectral filtering},
  author = {Z. Vernon and M. Menotti and C. C. Tison and J. A. Steidle and M. L. Fanto and P. M. Thomas and S. F. Preble and A. M. Smith and P. M. Alsing and M. Liscidini and J. E. Sipe},
  journal= {arXiv preprint arXiv:1703.10626},
  year   = {2017}
}

Comments

5 pages, 3 figures

R2 v1 2026-06-22T19:02:41.104Z