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Eavesdropping of two-way coherent-state quantum cryptography via gaussian quantum cloning machines

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Eavesdropping of two-way coherent-state quantum cryptography via gaussian quantum cloning machines

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Author: Pirandola, Stefano; Mancini, Stefano; Lloyd, Seth; Braunstein, Samuel L.
Department: Massachusetts Institute of Technology. Research Laboratory of Electronics; Massachusetts Institute of Technology. Dept. of Mechanical Engineering
Publisher: Institute of Electrical and Electronics Engineers
Date Issued: 2009-02
Abstract:
We consider one of the quantum key distribution protocols recently introduced in Ref. [Pirandola et al., Nature Phys. 4, 726 (2008)]. This protocol consists of a two-way quantum communication between Alice and Bob, where Alice encodes secret information via a random phase-space displacement of a coherent state. In particular, we study its security against a specific class of individual attacks which are based on combinations of Gaussian quantum cloning machines.
URI: http://hdl.handle.net/1721.1/60056
ISBN: 978-1-4244-3349-0
Citation: Pirandola, S. et al. “Eavesdropping of Two-Way Coherent-State Quantum Cryptography via Gaussian Quantum Cloning Machines.” Quantum, Nano and Micro Technologies, 2009. ICQNM '09. Third International Conference on. 2009. 38-41. © Copyright 2009 IEEE
Version: Final published version
Terms of Use: Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Published As: http://dx.doi.org/10.1109/ICQNM.2009.8
Journal: Third International Conference on Quantum, Nano and Micro Technologies, 2009. ICQNM '09.

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