Optimal working points for continuous-variable quantum channels

Khan I, Wittmann C, Jain N, Killoran N, Luetkenhaus N, Marquardt C, Leuchs G (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Physical Review A - Atomic, Molecular, and Optical Physics American Physical Society

Book Volume: 88

Article Number: 010302

Journal Issue: 1

DOI: 10.1103/PhysRevA.88.010302

Abstract

The most important ability of a quantum channel is to preserve the quantum properties of transmitted quantum states. We experimentally demonstrate a continuous-variable system for efficient benchmarking of quantum channels. We probe the tested quantum channels for a wide range of experimental parameters such as amplitude, phase noise, and channel lengths up to 40 km. The data is analyzed using the framework of effective entanglement. We subsequently are able to deduce an optimal point of operation for each quantum channel with respect to the rate of distributed entanglement. This procedure is a promising candidate for benchmarking quantum nodes and individual links in large quantum networks of different physical implementations. © 2013 American Physical Society.

Authors with CRIS profile

Christoph Marquardt Institut für Optik, Information und Photonik Gerhard Leuchs

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE) University of Waterloo (UW) CA Canada (CA)

How to cite

APA:

Khan, I., Wittmann, C., Jain, N., Killoran, N., Luetkenhaus, N., Marquardt, C., & Leuchs, G. (2013). Optimal working points for continuous-variable quantum channels. Physical Review A - Atomic, Molecular, and Optical Physics, 88(1). https://doi.org/10.1103/PhysRevA.88.010302

MLA:

Khan, Imran, et al. "Optimal working points for continuous-variable quantum channels." Physical Review A - Atomic, Molecular, and Optical Physics 88.1 (2013).

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