Two-color Bell states heralded via entanglement swapping

Sofiane Merkouche; Valérian Thiel; Alex O. C. Davis; Brian J. Smith

Two-color Bell states heralded via entanglement swapping

Quantum Physics 2019-10-16 v1

Authors: Sofiane Merkouche , Valérian Thiel , Alex O. C. Davis , Brian J. Smith

Abstract

We report on an experiment demonstrating entanglement swapping of time-frequency entangled photons. We perform a frequency-resolved Bell-state measurement on the idler photons from two independent entangled photon pairs, which projects the signal photons onto a two-color Bell state. We verify entanglement in this heralded state using two-photon interference and observing quantum beating without the use of filters, indicating the presence of two-color entanglement. Our method could lend itself to use as a highly-tunable source of frequency-bin entangled single photons.

Keywords

entanglement swapping bell state time-frequency entangled photons frequency-resolved measurement two-photon interference quantum beating frequency-bin entanglement

Cite

@article{arxiv.1910.06506,
  title  = {Two-color Bell states heralded via entanglement swapping},
  author = {Sofiane Merkouche and Valérian Thiel and Alex O. C. Davis and Brian J. Smith},
  journal= {arXiv preprint arXiv:1910.06506},
  year   = {2019}
}

Two-color Bell states heralded via entanglement swapping

Abstract

Keywords

Cite

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