Quantum networking with short-range entanglement assistance
arXiv:2008.05553 · doi:10.1103/PhysRevA.103.012407
Abstract
We propose an approach to distribute high-fidelity long-range entanglement in a quantum network assisted by the entanglement supplied by auxiliary short-range paths between the network nodes. Entanglement assistance in the form of shared catalyst states is utilized to maximize the efficiency of entanglement concentration transformations over the edges of the network. The catalyst states are recycled for use in adaptive operations at the network nodes and replenished periodically using the auxiliary short-range paths. The rate of long-range entanglement distribution using such entanglement assistance is found to be significantly higher than possible without using entanglement assistance.
5 pages, 2 figures. 4 pages of supplementary material added in the revised version. Comments welcome
References in corpus (8)
- Quantum teleportation in high dimensions
- Optical Interferometry with Quantum Networks
- A Quantum Network Node with Crossed Optical Fibre Cavities
- Rate analysis for a hybrid quantum repeater
- Capacities of Quantum Channels and How to Find Them
- Tuning quantum channels to maximize polarization entanglement for telecom photon pairs
- Compensation of polarization dependent loss using noiseless amplification and attenuation
- Catalyzed entanglement concentration of qubit pairs