Show simple item record

dc.contributor.author Bayat, Abolfazl
dc.contributor.author Burgarth, Daniel Klaus
dc.contributor.author Mancini, Stefano
dc.contributor.author Bose, Sougato
dc.date.accessioned 2011-09-26T14:39:03Z
dc.date.available 2011-09-26T14:39:03Z
dc.date.issued 2008-05-22
dc.identifier.citation Bayat , A , Burgarth , D K , Mancini , S & Bose , S 2008 , ' Memory Effects in spin-chain channels for information transmission ' Physical Review A , vol 77 , 050306(R) . , 10.1103/PhysRevA.77.050306 en
dc.identifier.issn 1050-2947
dc.identifier.other PURE: 171438
dc.identifier.other dspace: 2160/7603
dc.identifier.uri http://hdl.handle.net/2160/7603
dc.description Bayat, A., Burgarth, D., Mancini, S., Bose, S. (2008). Memory Effects in spin-chain channels for information transmission. Physical Review A, 77, Article No: 050306(R) en
dc.description.abstract We investigate the multiple use of a ferromagnetic spin chain for quantum and classical communications without resetting. We find that the memory of the state transmitted during the first use makes the spin chain a qualitatively different quantum channel during the second transmission, for which we find the relevant Kraus operators. We propose a parameter to quantify the amount of memory in the channel and find that it influences the quality of the channel, as reflected through fidelity and entanglement transmissible during the second use. For certain evolution times, the memory allows the channel to exceed the memoryless classical capacity (achieved by separable inputs) and in some cases it can also enhance the quantum capacity. en
dc.format.extent 4 en
dc.language.iso eng
dc.relation.ispartof Physical Review A en
dc.title Memory Effects in spin-chain channels for information transmission en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevA.77.050306
dc.contributor.institution Quantum Systems, Information and Control en
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.description.status Peer reviewed en


Files in this item

Aside from theses and in the absence of a specific licence document on an item page, all works in Cadair are accessible under the CC BY-NC-ND Licence. AU theses and dissertations held on Cadair are made available for the purposes of private study and non-commercial research and brief extracts may be reproduced under fair dealing for the purpose of criticism or review. If you have any queries in relation to the re-use of material on Cadair, contact is@aber.ac.uk.

This item appears in the following Collection(s)

Show simple item record

Search Cadair


Advanced Search

Browse

Statistics