Wavefunction collapse can be viewed as an epiphenomenon of quantum decoherence, which in turn is nothing more than an effect of the underlying local time evolution of the wavefunction of a system and all of its environment.

— Wikipedia on EPR paradox

Quantum decoherence: only the wave function that describes the whole universe is real.

A wave function that describes part of the universe is only partially real.

— Me@2011.10.21

2011.11.18 Friday (c) All rights reserved by ACHK