Entangling single atoms over 33 km telecom fibre
- URL: http://arxiv.org/abs/2111.15526v1
- Date: Tue, 30 Nov 2021 16:13:40 GMT
- Title: Entangling single atoms over 33 km telecom fibre
- Authors: Tim van Leent, Matthias Bock, Florian Fertig, Robert Garthoff,
Sebastian Eppelt, Yiru Zhou, Pooja Malik, Matthias Seubert, Tobias Bauer,
Wenjamin Rosenfeld, Wei Zhang, Christoph Becher, Harald Weinfurter
- Abstract summary: We present results demonstrating heralded entanglement between two independent, remote single-atom quantum memories generated over fibre links with a total length up to 33 km.
The presented work represents a milestone towards the realization of efficient quantum network links.
- Score: 2.527878267188811
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Heralded entanglement between distant quantum memories is the key resource
for quantum networks. Based on quantum repeater protocols, these networks will
facilitate efficient large-scale quantum communication and distributed quantum
computing. However, despite vast efforts, long-distance fibre based network
links have not been realized yet. Here we present results demonstrating
heralded entanglement between two independent, remote single-atom quantum
memories generated over fibre links with a total length up to 33 km. To
overcome the attenuation losses in the long optical fibres of photons initially
emitted by the Rubidium quantum memories, we employ polarization-preserving
quantum frequency conversion to the low loss telecom band. The presented work
represents a milestone towards the realization of efficient quantum network
links.
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