Cthugha's latest activity
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Cthugha replied to the thread Undergrad Young's slits with incandescent light source.You mean like when you do not only consider Gaussian spatial modes,but also more complicated Laguerre-Gaussian modes carrying orbital... -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.The (mean) phase ##\langle \phi \rangle## is the argument of the complex amplitude ##a## of the light field, where ##a## is the complex... -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.Okay, I see your point, but I did not (and I think I still do not) interpret these posts in the way you do. Taking into account that for... -
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"Coherent state" is a specific term in QFT for a specific kind state: https://en.wikipedia.org/wiki/Coherent_state Of course a real... -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.It was the great achievement of Roy Glauber (and also George Sudarshan) to come up with a framework that gives an absolute meaning to... -
Cthugha reacted to PeterDonis's post in the thread Undergrad Young's slits with incandescent light source with
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A laser produces a coherent state. The expectation value of photon number in the state depends on the intensity; for low enough... -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.Mostly alright (although thermal sources may feel treated unfairly ;) ). I tend to disagree about the uncertainty part. Especially for... -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.This statement is unfortunately incorrect. Already if you put a single coherent beam into a beam splitter, the output state considering... -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.No, why should it? In a standard laser, you also cannot distinguish between photons coupled out of the resonator at some moment and... -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.No, this is what Glauber is of course famous for, but this is not what he is referring to. The key point is that all completely... -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.Yes, absolutely! -
Cthugha replied to the thread Undergrad Young's slits with incandescent light source.That is incorrect. Also, the experiment shown is not the double slit with single photons, but a double slit experiment done with a light...