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Heralded distribution of single-photon path entanglement
- Source :
- Phys. Rev. Lett. 125, 110506 (2020)
- Publication Year :
- 2020
-
Abstract
- We report the experimental realization of heralded distribution of single-photon path entanglement at telecommunication wavelengths in a repeater-like architecture. The entanglement is established upon detection of a single photon, originating from one of two spontaneous parametric down conversion photon pair sources, after erasing the photon's which-path information. In order to certify the entanglement, we use an entanglement witness which does not rely on post-selection. We herald entanglement between two locations, separated by a total distance of 2 km of optical fiber, at a rate of 1.6 kHz. This work paves the way towards high-rate and practical quantum repeater architectures.<br />Comment: 5+9 pages, 7 figures
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 125, 110506 (2020)
- Publication Type :
- Report
- Accession number :
- edsarx.2004.09465
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.125.110506