Gaussian quantum information
Name
Weedbrook-2012-Gaussian quantum information.pdf
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1.35 MB
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Author(s) • • • • • •
Weedbrook, Christian
Pirandola, Stefano
Garcia-Patron Sanchez, Raul
Cerf, Nicolas J.
Ralph, Timothy C.
Shapiro, Jeffrey H.
Lloyd, Seth
Date Issued
May 2012
Journal
Reviews of Modern Physics
Publisher
American Physical Society
Citation
Weedbrook, Christian et al. “Gaussian Quantum Information.” Reviews of Modern Physics 84.2 (2012): 621–669. © 2012 American Physical Society
Version
Final published version
Abstract
The science of quantum information has arisen over the last two decades centered on the manipulation of individual quanta of information, known as quantum bits or qubits. Quantum computers, quantum cryptography, and quantum teleportation are among the most celebrated ideas that have emerged from this new field. It was realized later on that using continuous-variable quantum information carriers, instead of qubits, constitutes an extremely powerful alternative approach to quantum information processing. This review focuses on continuous-variable quantum information processes that rely on any combination of Gaussian states, Gaussian operations, and Gaussian measurements. Interestingly, such a restriction to the Gaussian realm comes with various benefits, since on the theoretical side, simple analytical tools are available and, on the experimental side, optical components effecting Gaussian processes are readily available in the laboratory. Yet, Gaussian quantum information processing opens the way to a wide variety of tasks and applications, including quantum communication, quantum cryptography, quantum computation, quantum teleportation, and quantum state and channel discrimination. This review reports on the state of the art in this field, ranging from the basic theoretical tools and landmark experimental realizations to the most recent successful developments.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Research Laboratory of Electronics
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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.
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DOI of Published Version
https://doi.org/10.1103/RevModPhys.84.621