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/sci/ - Science & Math


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12248879 No.12248879 [Reply] [Original]

How long does it take a light particle to cross a hydrogen molecule?

Also, why do two entangled photons change polarity at the same time even when separated by very long distances?

>> No.12249052
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12249052

>>12248879
>Also, why do two entangled photons change polarity at the same time even when separated by very long distances?

They don't. Quantum physicists just can't into dependent probability. Pic related.

>> No.12249411

>>12248879
>How long does it take a light particle to cross a hydrogen molecule?
Divide the diameter of a hydrogen atom by the speed of light.

>Also, why do two entangled photons change polarity at the same time even when separated by very long distances?
They don't. If they did, we would have already had FTL communication technology.

>> No.12249752

>>12248879
An infinite time because the wavefunction extends to infinity.

>> No.12250743
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12250743

>>12249752
nah, it's 247 zeptoseconds

>> No.12250782

>>12249752
>>12250743

I guess the 247 zeptoseconds paper defined the length of a hydrogen molecule as something like the internuclear distance. If you define the size of the hydrogen molecule as the farthest reaches of its wavefunction, it would technically be infinite, but that's not a very productive definition.

>> No.12250785

>>12248879
According to the Many-Worlds Interpretation, the photon far away doesn't change polarity, you just wind up in a universe where its polarity is a certain value. This is because you entangle yourself with the polarity of the system. Hopefully that makes a little sense.

>> No.12251993

>>12248879
spooks