Abstract
The authors survey what is known about correlations in physical systems. Bell (1964-6) found that locally realistic theories are limited in the types of correlations which they allow. The more recent results of Greenberger, Horne and Zeilinger (1992) and of Hardy (1989) have shown that local realism imposes even stronger restrictions than those found by Bell. It is less well known that quantum mechanics is also limited in the kinds of correlations it can produce. This was first discovered by Tsirelson (1980). The authors discuss Tsirelson's results and related work by Landau (1987). They conclude by presenting further conditions which quantum mechanical correlations must satisfy.
Original language | English |
---|---|
Article number | 004 |
Pages (from-to) | 215-227 |
Number of pages | 13 |
Journal | Quantum and Semiclassical Optics: Journal of the European Optical Society Part B |
Volume | 7 |
Issue number | 3 |
DOIs | |
State | Published - 1995 |
Externally published | Yes |