Related papers: Entanglement swapping between independent and asynchronous integrated photon-pair sources

Entanglement swapping between independent and asynchronous integrated photon-pair sources

URL: http://arxiv.org/abs/2011.08150v1
Date: Mon, 16 Nov 2020 18:23:21 GMT
Title: Entanglement swapping between independent and asynchronous integrated photon-pair sources
Authors: Farid Samara, Nicolas Maring, Anthony Martin, Arslan S. Raja, Tobias J. Kippenberg, Hugo Zbinden, Rob Thew
Abstract summary: Integrated photonics represents a technology that could greatly improve quantum communication networks. We demonstrate entanglement swapping between independent photon-pair sources. This results in entanglement swapping visibility as high as $91.2 pm 3.4,%$.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Integrated photonics represents a technology that could greatly improve quantum communication networks in terms of cost, size, scaling, and robustness. A key benchmark for this is to demonstrate their performance in complex quantum networking protocols, such as entanglement swapping between independent photon-pair sources. Here, using time-resolved detection, and two independent and integrated Si$_3$N$_4$ microring resonator photon-pair sources, operating in the CW regime at telecom wavelengths, we obtained spectral purities up to $0.97 \pm 0.02$ and a HOM interference visibility between the two sources of $V_{\rm HOM}=93.2 \pm 1.6\,\%$. This results in entanglement swapping visibility as high as $91.2 \pm 3.4\,\%$

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