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Article: Unconditionally secure key distribution in higher dimensions by depolarization
Title | Unconditionally secure key distribution in higher dimensions by depolarization |
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Authors | |
Keywords | Depolarization Entanglement purification Local quantum operation Pauli error Phase error correction Quantum key distribution Shor-Preskill proof Two-way classical communication Unconditional security |
Issue Date | 2005 |
Publisher | I E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?puNumber=18 |
Citation | Ieee Transactions On Information Theory, 2005, v. 51 n. 4, p. 1451-1468 How to Cite? |
Abstract | This paper presents a prepare-and-measure scheme using N-dimensional quantum particles as information carriers where N is a prime power. One of the key ingredients used to resist eavesdropping in this scheme is to depolarize all Pauli errors introduced to the quantum information carriers. Using the Shor-Preskill-type argument, we prove that this scheme is unconditionally secure against all attacks allowed by the laws of quantum physics. For N = 2n > 2, each information carrier can be replaced by n entangled qubits. In this case, there is a family of eavesdropping attacks on which no unentangled-qubit-based prepare-and-measure (PM) quantum key distribution scheme known to date can generate a provably secure key. In contrast, under the same family of attacks, our entangled-qubit-based scheme remains secure whenever 2n ≥ 4. This demonstrates the advantage of using entangled particles as information carriers and of using depolarization of Pauli errors to combat eavesdropping attacks more drastic than those that can be handled by unentangled-qubit-based prepare-and-measure schemes. © 2005 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/43470 |
ISSN | 2023 Impact Factor: 2.2 2023 SCImago Journal Rankings: 1.607 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Chau, HF | en_HK |
dc.date.accessioned | 2007-03-23T04:46:19Z | - |
dc.date.available | 2007-03-23T04:46:19Z | - |
dc.date.issued | 2005 | en_HK |
dc.identifier.citation | Ieee Transactions On Information Theory, 2005, v. 51 n. 4, p. 1451-1468 | en_HK |
dc.identifier.issn | 0018-9448 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/43470 | - |
dc.description.abstract | This paper presents a prepare-and-measure scheme using N-dimensional quantum particles as information carriers where N is a prime power. One of the key ingredients used to resist eavesdropping in this scheme is to depolarize all Pauli errors introduced to the quantum information carriers. Using the Shor-Preskill-type argument, we prove that this scheme is unconditionally secure against all attacks allowed by the laws of quantum physics. For N = 2n > 2, each information carrier can be replaced by n entangled qubits. In this case, there is a family of eavesdropping attacks on which no unentangled-qubit-based prepare-and-measure (PM) quantum key distribution scheme known to date can generate a provably secure key. In contrast, under the same family of attacks, our entangled-qubit-based scheme remains secure whenever 2n ≥ 4. This demonstrates the advantage of using entangled particles as information carriers and of using depolarization of Pauli errors to combat eavesdropping attacks more drastic than those that can be handled by unentangled-qubit-based prepare-and-measure schemes. © 2005 IEEE. | en_HK |
dc.format.extent | 453316 bytes | - |
dc.format.extent | 28160 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | application/msword | - |
dc.language | eng | en_HK |
dc.publisher | I E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?puNumber=18 | en_HK |
dc.relation.ispartof | IEEE Transactions on Information Theory | en_HK |
dc.rights | ©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. | - |
dc.subject | Depolarization | en_HK |
dc.subject | Entanglement purification | en_HK |
dc.subject | Local quantum operation | en_HK |
dc.subject | Pauli error | en_HK |
dc.subject | Phase error correction | en_HK |
dc.subject | Quantum key distribution | en_HK |
dc.subject | Shor-Preskill proof | en_HK |
dc.subject | Two-way classical communication | en_HK |
dc.subject | Unconditional security | en_HK |
dc.title | Unconditionally secure key distribution in higher dimensions by depolarization | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9448&volume=51&issue=4&spage=1451&epage=1468&date=2005&atitle=Unconditionally+secure+key+distribution+in+higher+dimensions+by+depolarization | en_HK |
dc.identifier.email | Chau, HF: hfchau@hku.hk | en_HK |
dc.identifier.authority | Chau, HF=rp00669 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/TIT.2005.844076 | en_HK |
dc.identifier.scopus | eid_2-s2.0-17744365422 | en_HK |
dc.identifier.hkuros | 98060 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-17744365422&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 51 | en_HK |
dc.identifier.issue | 4 | en_HK |
dc.identifier.spage | 1451 | en_HK |
dc.identifier.epage | 1468 | en_HK |
dc.identifier.isi | WOS:000228050800014 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Chau, HF=7005742276 | en_HK |
dc.identifier.issnl | 0018-9448 | - |