General criterion for oblivious remote state preparation
- 1 June 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 73 (6), 062301
- https://doi.org/10.1103/physreva.73.062301
Abstract
A necessary and sufficient condition is given for general exact remote state preparation (RSP) protocols to be oblivious, that is, no information about the target state can be retrieved from the classical message. A criterion in terms of commutation relations is also derived for the existence of deterministic exact protocols in which Alice’s measurement eigenstates are related to each other by fixed linear operators similar to Bob’s unitaries. For nonmaximally entangled resources, it provides an easy way to search for RSP protocols. As an example, we show how to reduce the case of partially entangled resources to that of maximally entangled ones, and we construct RSP protocols exploiting the structure of the irreducible representations of Abelian groups.Keywords
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