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You are very unpleasant.
Yet you can't say what "which info path collapses" is supposed to mean.
If this were my house and not just a silly internet discussion, I'd ask you to leave...
Ah yes, the moment the universe was created 150,000 years ago. That was a funny story, especially putting the TP roll on backwards, er I mean using the wrong side of the leaves to wipe. Or was it 6000 years ago? I get confused in religious discussions.
originally posted by: mbkennel
Ah, reruns are on syndication again on the Cartoon Physics Channel.
This video features Professor Phil Moriarty, a physicist at the University of Nottingham.
Quantum physics proves that there IS an afterlife, claims scientist
- Robert Lanza claims the theory of biocentrism says death is an illusion
- He said life creates the universe, and not the other way round...
Eichmann et al (Phys.Rev.Lett, 1993) set up a ‘two slit’ experiment using photon with lead atoms as the scatterers. With careful choice of energy, he was able to arrange that the scattering event changed the internal electronic state of the atom: a process which requires negligible momentum transfer but would allow subsequent measurement of the atomic state and determination which way the particle went. As a consequence, the interference fringes vanish.
Durr et al (Nature, 1998) used a standing light wave to scatter rubidium atoms. Added to this was a microwave source which changed the hyperfine state of the atoms at one of the “slits”, which could in principle be measured but supplies negligible momentum. The interference pattern disappeared.
Again, quantum mechanics has been shown to give a correct description: non-identical wavefunc- tions do not interfere even if they describe the same particle! It does not matter whether the measurement of the internal states is actually performed: the mere fact that it could be is enough to destroy the interference