Mapping Guaranteed Positive Secret Key Rates for Continuous Variable Quantum Key Distribution

Simple item page
dc.contributor.authorSayat MT
dc.contributor.authorThearle O
dc.contributor.authorShajilal B
dc.contributor.authorKish SP
dc.contributor.authorLam PK
dc.contributor.authorRattenbury NJ
dc.contributor.authorCater, John
dc.date.accessioned2025-02-10T21:00:18Z
dc.date.available2025-02-10T21:00:18Z
dc.date.issued2024
dc.description.abstractThe standard way to measure the performance of existing continuous variable quantum key distribution (CVQKD) protocols is by using the achievable secret key rate (SKR) with respect to one parameter while keeping all other parameters constant. However, this atomistic method requires many individual parameter analyses while overlooking the co-dependence of other parameters. In this work, a numerical tool is developed for comparing different CVQKD protocols while taking into account the simultaneous effects of multiple CVQKD parameters on the capability of protocols to produce positive SKRs. Using the transmittance, excess noise, and modulation amplitude parameter space, regions of positive SKR are identified to compare three discrete modulated (DM) CVQKD protocols. The results show that the M-QAM protocol outperforms the M-APSK and M-PSK protocols and that there is a non-linear increase in the capability to produce positive SKRs as the number of coherent states used for a protocol increases. The tool developed is beneficial for choosing the optimum protocol in unstable channels, such as free space, where the transmittance and excess noise fluctuate, providing a more holistic assessment of a protocol’s capability to produce positive SKRs.
dc.identifier.citationSayat MT, Thearle O, Shajilal B, Kish SP, Lam PK, Rattenbury NJ, Cater JE (2024). Mapping Guaranteed Positive Secret Key Rates for Continuous Variable Quantum Key Distribution. Entropy. 26(10). 865-.
dc.identifier.doihttp://doi.org/10.3390/e26100865
dc.identifier.issn1099-4300
dc.identifier.urihttps://hdl.handle.net/10092/107738
dc.languageeng
dc.publisherMDPI AG
dc.rightsAll rights reserved unless otherwise stated
dc.rights.urihttp://hdl.handle.net/10092/17651
dc.subjectcomparison tool
dc.subjectcontinuous variable
dc.subjectdiscrete modulated
dc.subjectnumerical analysis
dc.subjectprotocol
dc.subjectquantum key distribution
dc.subject.anzsrc40 - Engineering::4006 - Communications engineering::400602 - Data communications
dc.subject.anzsrc51 - Physical sciences::5108 - Quantum physics::510803 - Quantum information, computation and communication
dc.subject.anzsrc46 - Information and computing sciences::4604 - Cybersecurity and privacy::460403 - Data security and protection
dc.subject.anzsrc46 - Information and computing sciences::4604 - Cybersecurity and privacy::460401 - Cryptography
dc.titleMapping Guaranteed Positive Secret Key Rates for Continuous Variable Quantum Key Distribution
dc.typeJournal Article
uc.collegeFaculty of Engineering
uc.departmentMechanical Engineering
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Mapping Guaranteed Positive Secret Key Rates for Continuous Variable Quantum Key Distribution.pdf
Size:
5.16 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.17 KB
Format:
Plain Text
Description:
Download
Collections
Engineering: Journal Articles