3 ms·
In a pair of quantum particles [1], when one is spinning-up, other is spinning down even when they are separated. Therefore it is possible to find out about the
by sbashyal 14y ago
In a pair of quantum particles [1], when one is spinning-up, other is spinning down even when they are separated. Therefore it is possible to find out about the state of one by looking at the other.
[1] http://en.wikipedia.org/wiki/Quantum_entanglement#Concept http://en.wikipedia.org/wiki/Quantum_entanglement#Concept
- colanderman 14y agoYes but doing so collapses the wavefunction. Hence there's no way to observe when the wavefunction collapses.
- ubercow13 14y agoBy a series of repeated experiments and statistical inference?
- aroberge 14y agoMany (most?) interpretations of quantum mechanics do not involve a "collapse" of the wavefunction. The Copenhagen interpretation, which is the oldest and better known, does, but the many-worlds interpretation (which I dislike), which is favoured by many working in cosmology and quantum gravity, does not involve a collapse of the wavefunction.