The GHZ state in secret sharing and entanglement simulation
Quantum Physics
2012-02-22 v1
Abstract
In this note, we study some properties of the GHZ state. First, we present a quantum secret sharing scheme in which the participants require only classical channels in order to reconstruct the secret; our protocol is significantly more efficient than the trivial usage of teleportation. Second, we show that the classical simulation of an n-party GHZ state requires at least n log n - 2n bits of communication. Finally, we present a problem simpler than the complete simulation of the multi-party GHZ state, that could lead to a no-go theorem for GHZ state simulation.
Cite
@article{arxiv.0810.0259,
title = {The GHZ state in secret sharing and entanglement simulation},
author = {Anne Broadbent and Paul Robert Chouha and Alain Tapp},
journal= {arXiv preprint arXiv:0810.0259},
year = {2012}
}
Comments
5 pages