Year: 1999
Type: article
Abstract: We investigate the amount of communication that must augment classical local hidden variable models in order to simulate the behavior 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 is necessary.
Source: Physical Review Letters
Authors: Gilles Brassard, Richard Cleve, Alain Tapp
Institutions: Université de Montréal, University of Calgary
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2078345446