On 12/27/2013 10:31 PM, Jason Resch wrote:
To that I would add the purely epistemic "non-intepretation" of Peres and
"No interpretation needed" -- I can interpret this in two ways, one way is to just take
the math and equations literally (this leads to Everett), the other is "shut up and
calculate", which leads no where really.
2. Determined by which observer? The cat is always either dead or
just a matter of someone making a measurement to find out.
So are you saying that before the measurement the cat is neither alive nor
both alive and dead, or definitely alive or definitely dead? If you, (and
you are), saying that the cat is always definitely alive or definitely
about about the radioactive atom? Is it ever in a state of being decayed
decayed? If you say no, it sounds like you are denying the reality of the
superposition, which some interpretations do, but then this leads to
explaining how quantum computers work (which require the superposition to
Superposition is just a question of basis. An eigenstate in one basis is a
superposition in another.
Can you provide a concrete example where some system can simultaneously be considered to
be both in a superposition and not? Is this like the superposition having collapsed for
Wigner's friend while remaining for Wigner before he enters the room?
?? Every pure state can be written as a superposition of a complete set of basis states -
that's just Hilbert space math.
The collapse for Wigner's friend can be interpreted either epistemically or by
Anny: What happened to that poor cat? It looks half dead.
Erwin: I don't know. Ask Wigner.
Eugene: I just looked in and it collapsed!
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