A telecom-wavelength quantum repeater node based on a trapped-ion processor

Abstract

A quantum repeater node is presented based on trapped ions that act as single photon emitters, quantum memories and an elementary quantum processor. The node's ability to establish entanglement across two 25 km-long optical fibers independently, then to swap that entanglement efficiently to extend it over both fibers, is demonstrated. The resultant entanglement is established between telecom-wavelength photons at either end of the 50 km channel. The system improvements to allow for repeater-node chains to establish stored entanglement over 800 km at Hertz rates are calculated, revealing a near-term path to distributed networks of entangled sensors, atomic clocks and quantum processors.

5 pages and 4 figures main text plus supplementary

References in corpus (12)

• The Quantum Internet
• An Elementary Quantum Network of Single Atoms in Optical Cavities
• Realization of a multi-node quantum network of remote solid-state qubits
• Quantum Repeaters with Photon Pair Sources and Multi-Mode Memories
• Towards fault-tolerant quantum computing with trapped ions
• Tunable ion-photon entanglement in an optical cavity
• Observation of the 1S0 - 3P0 clock transition in 27Al+
• Entanglement of trapped-ion qubits separated by 230 meters
• Robust Quantum Memory in a Trapped-Ion Quantum Network Node
• A Quantum Repeater Node Demonstrating Unconditionally Secure Key Distribution
• Memory coherence of a sympathetically cooled trapped-ion qubit
• Efficient polarisation-preserving frequency conversion from a trapped-ion-compatible wavelength to the telecom C band

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