posted on Apr, 10 2013 @ 06:03 PM
Originally posted by jiggerj
Don't ya just hate getting ideas right before bed? I want to get this down so I don't forget it.
Quantum physics tells us that we don't know where a particle will appear, but we can guess where they might appear. Doesn't this define the
probability wave function?
If so, why is it that we know exactly where photons will appear when we turn on a light? The photons emitted from a lightbulb will always light up a
room. I've never heard of anyone seeing a space of darkness where the photons didn't appear when a light is turned on.
If this is worthy of discussion, I'll continue it tomorrow. Have a good night, all.
The reason you don't experience the uncertainty of quantum fields in normal human circumstances is that the number of photons being produced by a
light is extremely, nearly astronomically, large. The large number of them make it such that if the probability is non-zero the chance of having
photons is essentially 1 in that state.
In practice, the intensity will follow the probability distribution extremely well, because the fluctuations are suppressed by the large N count of
By contrast, when optical scientists do tests on individual photons in extremely dark laboratory conditions using extremely sensitive light
amplification devices for detection (quantum optics), the uncertainty of the underlying quantum behavior becomes apparent.
In a nutshell: yes, it is probabilistic but you won't ever see it unless you work in a very expensive optical laboratory and have a PhD in physics or
edit on 10-4-2013 by mbkennel because: (no reason given)