出典:Wikipedia
出典:『Wikipedia』 (2011/06/10 01:45 UTC 版)
The EPR paradox (or Einstein–Podolsky–Rosen paradox) is a topic in quantum physics and the philosophy of science concerning the measurement and description of microscopic systems (such as individual photons, electrons or atoms) by the methods of quantum physics. It refers to the dichotomy that either the measurement of a physical quantity in one system must affect the measurement of a physical quantity in another, spatially separate, system or the description of reality given by a wave function must be incomplete.