Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/90029
Title: How discord underlies the noise resilience of quantum illumination
Authors: Weedbrook, Christian
Pirandola, Stefano
Thompson, Jayne
Vedral, Vlatko
Gu, Mile
Keywords: DRNTU::Science::Physics
Quantum Discord
Quantum Illumination
Issue Date: 2016
Source: Weedbrook, C., Pirandola, S., Thompson, J., Vedral, V., & Gu, M. (2016). How discord underlies the noise resilience of quantum illumination. New Journal of Physics, 18(4), 043027-. doi:10.1088/1367-2630/18/4/043027
Series/Report no.: New Journal of Physics
Abstract: The benefits of entanglement can outlast entanglement itself. In quantum illumination, entanglement is employed to better detect reflecting objects in environments so noisy that all entanglement is destroyed. Here, we show that quantum discord—a more resilient form of quantum correlations—explains the resilience of quantum illumination. We introduce a quantitative relation between the performance gain in quantum illumination and the amount of discord used to encode information about the presence or absence of a reflecting object. This highlights discords role preserving the benefits of entanglement in entanglement breaking noise.
URI: https://hdl.handle.net/10356/90029
http://hdl.handle.net/10220/46486
ISSN: 1367-2630
DOI: 10.1088/1367-2630/18/4/043027
Rights: © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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