The cost of exactly simulating quantum entanglement with classical communication
Quantum Physics
2009-10-31 v1
Abstract
We investigate the amount of communication that must augment classical local hidden variable models in order to simulate the behaviour of entangled quantum systems. We consider the scenario where a bipartite measurement is given from a set of possibilities and the goal is to obtain exactly the same correlations that arise when the actual quantum system is measured. We show that, in the case of a single pair of qubits in a Bell state, a constant number of bits of communication is always sufficient--regardless of the number of measurements under consideration. We also show that, in the case of a system of n Bell states, a constant times 2^n bits of communication are necessary.
Cite
@article{arxiv.quant-ph/9901035,
title = {The cost of exactly simulating quantum entanglement with classical communication},
author = {Gilles Brassard and Richard Cleve and Alain Tapp},
journal= {arXiv preprint arXiv:quant-ph/9901035},
year = {2009}
}
Comments
9 pages, LaTeX, no figures