Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment

We present a bidirectional quantum key distribution protocol with minimal encoding operations derived from the use of only two “nonorthogonal” unitary transformations selected from two mutually unbiased unitary bases. Differently from many bidirectional protocols, these transformations are indisting...

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Main Authors:	Shamsul Shaari, Jesni, Soekardjo, Suryadi
Format:	Article
Language:	English English
Published:	IOP Publishing 2017
Subjects:	QC Physics
Online Access:	http://irep.iium.edu.my/62745/ http://irep.iium.edu.my/62745/ http://irep.iium.edu.my/62745/ http://irep.iium.edu.my/62745/8/62745%20Indistinguishable%20encoding%20for%20bidirectional%20quantum.pdf http://irep.iium.edu.my/62745/7/62745%20Indistinguishable%20encoding%20SCOPUS.pdf

id	iium-62745
recordtype	eprints
spelling	iium-627452018-04-13T02:06:43Z http://irep.iium.edu.my/62745/ Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment Shamsul Shaari, Jesni Soekardjo, Suryadi QC Physics We present a bidirectional quantum key distribution protocol with minimal encoding operations derived from the use of only two “nonorthogonal” unitary transformations selected from two mutually unbiased unitary bases. Differently from many bidirectional protocols, these transformations are indistinguishable in principle for a single use. Along with its decoding pro- cedure, it is unique compared to its “orthogonal encoding” predecessors. Given the nature of such protocols where key rates are usually dependent on two different types of error rates, we define a more relevant notion of security threshold for such protocols to allow for proper com- parisons to be made. The current protocol outperforms its predecessor in terms of security as the amount of information an eavesdropper can glean is limited by the indistinguishability of the transformations. We further propose adaptations for a practical scenario and report on a proof of concept experimental scheme based on polarised photons from an attenuated pulsed laser for qubits, demonstrating the feasibility of such a protocol. IOP Publishing 2017-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/62745/8/62745%20Indistinguishable%20encoding%20for%20bidirectional%20quantum.pdf application/pdf en http://irep.iium.edu.my/62745/7/62745%20Indistinguishable%20encoding%20SCOPUS.pdf Shamsul Shaari, Jesni and Soekardjo, Suryadi (2017) Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment. EPL (Europhysics Letters),, 120 (6). p1-p7. ISSN 0295-5075 E-ISSN 1286-4854 http://iopscience.iop.org/article/10.1209/0295-5075/120/60001/pdf 10.1209/0295-5075/120/60001
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	QC Physics
spellingShingle	QC Physics Shamsul Shaari, Jesni Soekardjo, Suryadi Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment
description	We present a bidirectional quantum key distribution protocol with minimal encoding operations derived from the use of only two “nonorthogonal” unitary transformations selected from two mutually unbiased unitary bases. Differently from many bidirectional protocols, these transformations are indistinguishable in principle for a single use. Along with its decoding pro- cedure, it is unique compared to its “orthogonal encoding” predecessors. Given the nature of such protocols where key rates are usually dependent on two different types of error rates, we define a more relevant notion of security threshold for such protocols to allow for proper com- parisons to be made. The current protocol outperforms its predecessor in terms of security as the amount of information an eavesdropper can glean is limited by the indistinguishability of the transformations. We further propose adaptations for a practical scenario and report on a proof of concept experimental scheme based on polarised photons from an attenuated pulsed laser for qubits, demonstrating the feasibility of such a protocol.
format	Article
author	Shamsul Shaari, Jesni Soekardjo, Suryadi
author_facet	Shamsul Shaari, Jesni Soekardjo, Suryadi
author_sort	Shamsul Shaari, Jesni
title	Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment
title_short	Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment
title_full	Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment
title_fullStr	Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment
title_full_unstemmed	Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment
title_sort	indistinguishable encoding for bidirectional quantum key distribution: theory to experiment
publisher	IOP Publishing
publishDate	2017
url	http://irep.iium.edu.my/62745/ http://irep.iium.edu.my/62745/ http://irep.iium.edu.my/62745/ http://irep.iium.edu.my/62745/8/62745%20Indistinguishable%20encoding%20for%20bidirectional%20quantum.pdf http://irep.iium.edu.my/62745/7/62745%20Indistinguishable%20encoding%20SCOPUS.pdf
first_indexed	2023-09-18T21:28:53Z
last_indexed	2023-09-18T21:28:53Z
_version_	1777412377100156928

Indistinguishable encoding for bidirectional quantum key distribution: Theory to experiment

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