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 Post subject: Quantum Mechanics
Post #1 Posted: Mon Jun 30, 2014 10:30 pm 
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An interesting article on quantum mechanics, Have We Been Interpreting Quantum Mechanics Wrong This Whole Time?, in Wired magazine: http://www.wired.com/2014/06/the-new-quantum-reality/

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 Post subject: Re: Quantum Mechanics
Post #2 Posted: Tue Jul 01, 2014 12:05 am 
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Wired magazine wrote:
... Only when a particle is measured does it suddenly materialize, appearing to pick its position as if by a roll of the dice ...


That's the definition of Aji is it ? :lol:

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 Post subject: Re: Quantum Mechanics
Post #3 Posted: Tue Jul 01, 2014 2:43 am 
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I forget where I first heard about the oil drop stuff. I thought it was really interesting and eventually forgot about it.

The article eventually mentions the criticism that it doesn't have the explanatory power that the standard model has.

Also, they call psi? a "probability wave" which I think is misleading. I think we haven't ever seen that wave and can't imagine what it might be (Schroedinger's equation works but doesn't have a fundamental basis). However, the modulus of psi squared is the probability of finding the particle.

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 Post subject: Re: Quantum Mechanics
Post #4 Posted: Wed Jul 02, 2014 8:29 pm 
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Wait, so this is resurrecting Bohmian mechanics? What about quantum field theory, then?

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Post #5 Posted: Wed Jul 02, 2014 10:21 pm 
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zaqxswcde wrote:
What about quantum field theory, then?
What about it ?

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 Post subject: Re: Quantum Mechanics
Post #6 Posted: Thu Jul 03, 2014 4:08 am 
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I thought about posting this yesterday: http://arstechnica.com/science/2014/07/ ... eal-thing/ And this concerning neutrinos: http://arstechnica.com/science/2014/04/ ... ard-model/

Now I'm off for a holiday to my in-laws.

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 Post subject: Re: Quantum Mechanics
Post #7 Posted: Thu Jul 03, 2014 8:28 am 
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Aidoneus wrote:
I thought about posting this yesterday: http://arstechnica.com/science/2014/07/ ... eal-thing/ And this concerning neutrinos: http://arstechnica.com/science/2014/04/ ... ard-model/

Now I'm off for a holiday to my in-laws.


The "Quantum state may be a real thing" article may indicate the significance of the oil drop on surface experiments. It says, "Bohm's pilot wave, a type of hidden variable, has to be pretty extraordinary to be real." By finding a classical analog of the pilot wave, the oil drop experiments reduce the extraordinariness of the pilot wave.

Meanwhile, the many worlds interpretation has a number of hidden variables approaching infinity. ;)

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 Post subject: Re: Quantum Mechanics
Post #8 Posted: Sat Jul 05, 2014 2:10 pm 
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Does it mean the following: god does not throw dice -> everything is deterministic -> from bing bang on, one could predict that I would exist and write this post...

Why did bing bang happen that way then? If everything is deterministic, what is the reason of the very first state of everything?

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 Post subject: Re: Quantum Mechanics
Post #9 Posted: Sat Jul 05, 2014 7:07 pm 
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Saw a mention of this elsewhere with a response from a prominent philosopher of physics. http://leiterreports.typepad.com/blog/2 ... l#comments

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