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Jun 1 '12 at 11:06 answer Oli timeline score: 0
May 29 '12 at 8:58 answer Naughty Troublemaker timeline score: 0
May 27 '12 at 9:33 answer collapse timeline score: 0
May 14 '12 at 10:08 answer Zee timeline score: 0
May 9 '12 at 11:24 comment added Luboš Motl "How is it even possible to consider subsystems in isolation?" Because everything that is physically meaningful may be considered. One may talk about the well-defined eigenstates of a quantity which may be associated with a local region. Whenever we learn about the value of an observable, we know that the state of the system is an eigenstate of this quantity. When we measure a complete set of observables describing a subsystem or a region, we know that the subsystem is in a pure state - the common eigenstate of the set. Any measurement makes a previous correlation/entanglement irrelevant.
May 9 '12 at 11:15 history tweeted twitter.com/#!/StackPhysics/status/200182134026141696
May 9 '12 at 10:53 answer Arnold Neumaier timeline score: 14
May 9 '12 at 9:30 answer anna v timeline score: 2
May 9 '12 at 9:02 answer kleingordon timeline score: 9
May 9 '12 at 8:43 answer John Rennie timeline score: 5
May 9 '12 at 7:58 history edited Qmechanic CC BY-SA 3.0
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May 9 '12 at 7:50 history asked confused CC BY-SA 3.0