Remote State Preparation

Quantum teleportation uses prior entanglement and forward classical communication to transmit one instance of an unknown quantum state. Remote state preparation (RSP) has the same goal, but the sender knows classically what state is to be transmitted. We show that the asymptotic classical communicat...

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Bibliographic Details
Published inarXiv.org
Main Authors Bennett, Charles H, DiVincenzo, David P, Shor, Peter W, Smolin, John A, Terhal, Barbara M, Wootters, William K
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 30.07.2001
Subjects
Communication
Quantum entanglement
Quantum teleportation
Quantum theory
Qubits (quantum computing)
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Summary:Quantum teleportation uses prior entanglement and forward classical communication to transmit one instance of an unknown quantum state. Remote state preparation (RSP) has the same goal, but the sender knows classically what state is to be transmitted. We show that the asymptotic classical communication cost of RSP is one bit per qubit - half that of teleportation - and becomes even less when transmitting part of a known entangled state. We explore the tradeoff between entanglement and classical communication required for RSP, and discuss RSP capacities of general quantum channels.
ISSN:2331-8422
DOI:10.48550/arxiv.0006044