Quantum Scientists prove that the future creates the past- WTF!!!
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12-06-2015, 07:53 PM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(12-06-2015 07:50 PM)Chas Wrote:  You will kindly note the phrase ....

Why you talking funny?

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12-06-2015, 08:03 PM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(12-06-2015 07:52 PM)GirlyMan Wrote:  
(12-06-2015 07:41 PM)Chas Wrote:  If it requires computation to deal with the statistical smearing, then it is an intractable problem.

Only if P ≠ NP. Drinking Beverage

That doesn't apply; it is simply the scaling up that is the issue. It would require massive parallel processing even by quantum computing.

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12-06-2015, 08:04 PM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(12-06-2015 07:41 PM)Chas Wrote:  And how are they going to cool your fat ass to a sufficiently low temperature to put it in its quantum ground state? Consider

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12-06-2015, 08:25 PM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(12-06-2015 08:03 PM)Chas Wrote:  
(12-06-2015 07:52 PM)GirlyMan Wrote:  Only if P ≠ NP. Drinking Beverage

That doesn't apply; ...

Yeah, except NP's kind of like the definition of intractable. ... and shit.

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12-06-2015, 08:29 PM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(12-06-2015 08:25 PM)GirlyMan Wrote:  
(12-06-2015 08:03 PM)Chas Wrote:  That doesn't apply; ...

Yeah, except it's kind of like the definition of intractable. ... and shit.

No, it's not the definition of intractable, it's only one area of intractability.

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13-06-2015, 09:58 AM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(12-06-2015 07:41 PM)Chas Wrote:  
(12-06-2015 07:03 PM)cjlr Wrote:  So-called classical behaviour is a statistically emergent phenomenon. But there is no well-defined point at which any system transitions; the fundamental elements retain their properties. Sufficiently large systems exhibit classical behaviour, but the definition of "sufficient" depends on the system's parameters.

Quantum superposition of position distribution wave functions - in short, double slit experiments - have been performed with objects as large as fullerenes.

When you get to 6.02 x 10²³ molecules, let me know.

The number of purely quantum, or quantum-like, microstates of a large ensemble is incredibly small relative to the number of mixed classical microstates. Reducing a macroscopic thermodynamic ensemble to that small subset is a difficult task!

But it is, of course, possible in principle. And indeed, the largest-scale current demonstrations of quantum behaviour would have been unthinkable to previous generations of scientists.

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14-06-2015, 04:45 AM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(13-06-2015 09:58 AM)cjlr Wrote:  
(12-06-2015 07:41 PM)Chas Wrote:  When you get to 6.02 x 10²³ molecules, let me know.

The number of purely quantum, or quantum-like, microstates of a large ensemble is incredibly small relative to the number of mixed classical microstates. Reducing a macroscopic thermodynamic ensemble to that small subset is a difficult task!

But it is, of course, possible in principle. And indeed, the largest-scale current demonstrations of quantum behaviour would have been unthinkable to previous generations of scientists.

And it is possible, in principle, that the raised arm of the Statue of Liberty will by dint of random molecular motion wave back and forth.

I'm not holding my breath. Drinking Beverage

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14-06-2015, 12:21 PM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(14-06-2015 04:45 AM)Chas Wrote:  
(13-06-2015 09:58 AM)cjlr Wrote:  The number of purely quantum, or quantum-like, microstates of a large ensemble is incredibly small relative to the number of mixed classical microstates. Reducing a macroscopic thermodynamic ensemble to that small subset is a difficult task!

But it is, of course, possible in principle. And indeed, the largest-scale current demonstrations of quantum behaviour would have been unthinkable to previous generations of scientists.

And it is possible, in principle, that the raised arm of the Statue of Liberty will by dint of random molecular motion wave back and forth.

I'm not holding my breath. Drinking Beverage

I never thought I'd see a 10 story building waving back and forth at me "Hey Bob! Bob! Over here!" by dint of random molecular motion. And then I did.

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14-06-2015, 02:44 PM
RE: Quantum Scientists prove that the future creates the past- WTF!!!
(14-06-2015 12:21 PM)GirlyMan Wrote:  
(14-06-2015 04:45 AM)Chas Wrote:  And it is possible, in principle, that the raised arm of the Statue of Liberty will by dint of random molecular motion wave back and forth.

I'm not holding my breath. Drinking Beverage

I never thought I'd see a 10 story building waving back and forth at me "Hey Bob! Bob! Over here!" by dint of random molecular motion. And then I did.

Uh-huh. Drinking Beverage

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