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An upper bound on the second order asymptotic expansion for the quantum communication cost of state redistribution

Datta, N; Hsieh, M-H; Oppenheim, J; (2016) An upper bound on the second order asymptotic expansion for the quantum communication cost of state redistribution. Journal of Mathematical Physics , 57 (5) , Article 052203. 10.1063/1.4949571. Green open access

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Abstract

State redistribution is the protocol in which given an arbitrary tripartite quantum state, with two of the subsystems initially being with Alice and one being with Bob, the goal is for Alice to send one of her subsystems to Bob, possibly with the help of prior shared entanglement. We derive an upper bound on the second order asymptotic expansion for the quantum communication cost of achieving state redistribution with a given finite accuracy. In proving our result, we also obtain an upper bound on the quantum communication cost of this protocol in the one-shot setting, by using the protocol of coherent state merging as a primitive.

Type: Article
Title: An upper bound on the second order asymptotic expansion for the quantum communication cost of state redistribution
Open access status: An open access version is available from UCL Discovery
DOI: 10.1063/1.4949571
Publisher version: http://dx.doi.org/10.1063/1.4949571
Language: English
Additional information: The following article appeared in the Journal of Mathematical Physics [Datta, N; Hsieh, M-H; Oppenheim, J; (2016) An upper bound on the second order asymptotic expansion for the quantum communication cost of state redistribution. Journal of Mathematical Physics, 57 (5), Article 052203. 10.1063/1.4949571] and may be found at http://dx.doi.org/10.1063/1.4949571]. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery-pp.ucl.ac.uk/id/eprint/1543194
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