Quantum teleportation and entanglement swapping for spin systems

Dominic W. Berry*, Barry C. Sanders

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)
6 Downloads (Pure)

Abstract

We analyse quantum teleportation (QT) and entanglement swapping (ES) for spin systems. If the permitted operations are restricted to the Ising interaction, plus local rotations and spin measurements, high-fidelity teleportation is achievable for quantum states that are close to the maximally weighted spin state. ES is achieved, and is maximized for a combination of entangled states and Bell measurements that is different from the QT case. If more general local unitary transformations are considered, then it is possible to achieve perfect teleportation and ES.

Original languageEnglish
Pages (from-to)8.1-8.21
Number of pages21
JournalNew Journal of Physics
Volume4
Publication statusPublished - 28 Feb 2002

Bibliographical note

Copyright 2002 IOP Publishing Ltd. Reprinted from New journal of physics. This material is posted here with the permission of IOP Publishing Ltd and the authors. Use of this material is permitted for personal, research and non-commercial uses. Further information regarding the copyright applicable to this article can be viewed at http://www.iop.org/EJ/journal/-page=extra.copyright/NJP.

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