Retrieving quantum backscattered signals in the presence of noise

Hany Khalifa*, Riku Jäntti

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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Quantum sensing based on entangled photon pairs is gradually establishing itself as a cornerstone in modern communication networks. The unrivalled capability of quantum sensing techniques in distilling signals plagued by noise, renders them suitable for deployment in backscatter communication networks. Several attempts have been made recently to utilize pairs of entangled signal- idler photons, to enhance the sensitivity of photo- detection in backscatter networks. However, these efforts have always assumed the lossless retention of the idler mode, which is a challenging task from a practical perspective. In this study we examine the extent to which quantum correlations remain after retaining the idler mode in a lossy memory element, while the signal photon propagates through a lossy thermal channel as usual. We also examine briefly two different detection methods, and estimate the received signal-to-noise ratio for them both. This new proposed model is one step further towards realizing quantum backscatter communication.

Original languageEnglish
Title of host publication2019 IEEE Globecom Workshops, GC Wkshps 2019 - Proceedings
ISBN (Electronic)9781728109602
Publication statusPublished - 1 Dec 2019
MoE publication typeA4 Article in a conference publication
EventIEEE Globecom Workshops - Waikoloa, United States
Duration: 9 Dec 201913 Dec 2019


WorkshopIEEE Globecom Workshops
Abbreviated titleGC Wkshps
Country/TerritoryUnited States


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