Relation between classical communication capacity and entanglement capability for two-qubit unitary operations

Dominic W. Berry*, Barry C. Sanders

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)
6 Downloads (Pure)

Abstract

By considering a quantum superposition of classical messages, the capacities for general nonlocalunitary operations were shown to satisfy the inequality c+ E≤Ev+Ev -. In order to show such inequalities, it was demonstrated that it was possible to put an upper limit on the dimension of the ancilla required for the communication process. This paper presents a promising way of proving equalities which was by developing an efficient scheme for remote state preparation of bidirectional ensembles.

Original languageEnglish
Article number032312
Pages (from-to)1-12
Number of pages12
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume68
Issue number3
Publication statusPublished - Sep 2003

Bibliographical note

Copyright 2003 by The American Physical Society. Reprinted from Physical review A.

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