Protocols and prospects for building a quantum repeater

Peter van Loock

doi:10.1117/12.2033316

29 October 2013 Protocols and prospects for building a quantum repeater

Peter van Loock

Proceedings Volume 8899, Emerging Technologies in Security and Defence; and Quantum Security II; and Unmanned Sensor Systems X; 88990U (2013) https://doi.org/10.1117/12.2033316
Event: SPIE Security + Defence, 2013, Dresden, Germany

Abstract

An overview will be given of various approaches to implementing a quantum repeater for quantum communication over large distances. This includes a discussion of systems and protocols that are experimentally feasible and thus realizable in the midterm in order to go beyond the current limit of a few hundred km given by direct quantum-state transmissions. At the same time, these schemes should be, in principle, scalable to arbitrary distances. In this context, the influence of various elements and strategies in a quantum repeater protocol on the final fidelities and rates shall be addressed: initial entanglement distribution, Bell measurements, multiplexing, postselection, quantum memories, and quantum error detection/correction. Solely on the hardware side, the differences in using just single quanta or instead employing many quanta for the flying (photons) and the stationary (atoms) qubits will be pointed out.

Citation Download Citation

Peter van Loock "Protocols and prospects for building a quantum repeater", Proc. SPIE 8899, Emerging Technologies in Security and Defence; and Quantum Security II; and Unmanned Sensor Systems X, 88990U (29 October 2013); https://doi.org/10.1117/12.2033316

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