How discord underlies the noise resilience of quantum illumination

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 t...

Full description

Saved in:
Bibliographic Details
Main Authors: Weedbrook, Christian, Pirandola, Stefano, Thompson, Jayne, Vedral, Vlatko, Gu, Mile
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2018
Subjects:
Online Access:https://hdl.handle.net/10356/90029
http://hdl.handle.net/10220/46486
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-90029
record_format dspace
spelling sg-ntu-dr.10356-900292023-02-28T19:23:04Z How discord underlies the noise resilience of quantum illumination Weedbrook, Christian Pirandola, Stefano Thompson, Jayne Vedral, Vlatko Gu, Mile School of Physical and Mathematical Sciences Complexity Institute DRNTU::Science::Physics Quantum Discord Quantum Illumination 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. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2018-10-31T08:27:50Z 2019-12-06T17:39:05Z 2018-10-31T08:27:50Z 2019-12-06T17:39:05Z 2016 Journal Article 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 1367-2630 https://hdl.handle.net/10356/90029 http://hdl.handle.net/10220/46486 10.1088/1367-2630/18/4/043027 en New Journal of Physics © 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. 11 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Physics
Quantum Discord
Quantum Illumination
spellingShingle DRNTU::Science::Physics
Quantum Discord
Quantum Illumination
Weedbrook, Christian
Pirandola, Stefano
Thompson, Jayne
Vedral, Vlatko
Gu, Mile
How discord underlies the noise resilience of quantum illumination
description 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.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Weedbrook, Christian
Pirandola, Stefano
Thompson, Jayne
Vedral, Vlatko
Gu, Mile
format Article
author Weedbrook, Christian
Pirandola, Stefano
Thompson, Jayne
Vedral, Vlatko
Gu, Mile
author_sort Weedbrook, Christian
title How discord underlies the noise resilience of quantum illumination
title_short How discord underlies the noise resilience of quantum illumination
title_full How discord underlies the noise resilience of quantum illumination
title_fullStr How discord underlies the noise resilience of quantum illumination
title_full_unstemmed How discord underlies the noise resilience of quantum illumination
title_sort how discord underlies the noise resilience of quantum illumination
publishDate 2018
url https://hdl.handle.net/10356/90029
http://hdl.handle.net/10220/46486
_version_ 1759855622426198016