How could addition of a second polarizer in front of the first

>>9123980
Nonzero angular momentum operator commutators

>>9123980
polarizing filter/lens on the camera in addition to the effect (circular polarization) generated by the two filters at 45 degrees.
https://en.wikipedia.org/wiki/Circular_polarization#Conversion_to_and_from_linear_polarization

File: three_polarizers.jpg (55KB, 640x548px) Image search: [Google]

55KB, 640x548px

>>9124006
Linear polarization

>>9124084
yeah my mistake, i'm not sure what/why i was thinking what i was. It is just linear polarization (with the lens etc.).

>>9123996
Show me the proof using QED moran.

>>9124285
>babby's first representation theory
Do your homework alone.

>>9123980
got asked this in a phd interview, it should be obvious if you think about the quantum nature of light

>>9123980
Classically, you could say that the polarization filters aren't 'ideal' and allow a spread of differentially polarized light waves around their pass-thru axis. These then go on to destructively interfere giving the impression of total light blockage; adding another filter blocks some of those and prevents that from happening as much. More fundamentally, in quantum mechanics, existence of such an ideal filter is prohibited, even in principle, by the uncertainty relations. So, even if your light source were to fire photons one by one, there would be a probabilistic spread in polarizations that produce analogous interference phenomena

>>9123980

The real question is, Why don't we make computers out of this?