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Proceedings Paper

A quantum repeater network formed with hybrid NV diamond modules (Conference Presentation)
Author(s): Kae Nemoto; Michael Trupke; Burkhard Scharfenberger; Jörg Schmiedmayer; Michael Hanks; Willam J. Munro

Paper Abstract

We present new quantum repeater architectures based on optical modules with NV diamond centers to highlight how physical properties of these optical modules change the operations, performance and limitations of the quantum repeater systems.We focus on two different approaches to construct optical modules, and see how the properties of modules propagate to the total system. The first approach to construct the optical module is to utilize the conditional refection dependent on the electron state of the single NV center in the cavity, and the other approach is to use absorption induced teleportation from an incoming photon to the nuclear spin of the NV center. To characterize a quantum repeater system, the processes and protocols associated with photons are important.As photons are not reliable as an information carrier, i.e. quantum manipulations associated with photons are not deterministic, and the protocols and manipulations rely on post-selection to keep the fidelity of the quantum information.Post-selection is essential in quantum communications based on photons to maintain the fidelity of the communication, however it restricts the architecture of the system to be tolerant to probabilistic gates. This factor is cost intensive and is the key for the architectures to be scalable.We show that the details of how the scalability of the architectures can be affected by physical parameters of the modules.

Paper Details

Date Published: 7 December 2016
PDF: 1 pages
Proc. SPIE 9980, Quantum Communications and Quantum Imaging XIV, 998004 (7 December 2016); doi: 10.1117/12.2237123
Show Author Affiliations
Kae Nemoto, National Institute of Informatics (Japan)
Michael Trupke, Vienna Center for Quantum Science TU-Wien (Austria)
Burkhard Scharfenberger, National Institute of Informatics (Japan)
Jörg Schmiedmayer, Ruprecht-Karls-Univ. Heidelberg (Germany)
Vienna Center for Quantum Science TU-Wien (Austria)
Michael Hanks, National Institute of Informatics (Japan)
Willam J. Munro, NTT Basic Research Labs. (Japan)

Published in SPIE Proceedings Vol. 9980:
Quantum Communications and Quantum Imaging XIV
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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