It was clear "always".
For me todays reply is :
It's imposible to generate pair of photons with known polarizations...
Second learn is ( very good and simply explained by all of you ) :
0 and 90 = -45 and +45
i saw it difference before, now after calculation understand how it works...
It's what i needed , now all is clear and i know where was my important knowledge gaps....
Thank You !!!
One question more if can.... about this:
yes, I wrote that I misunderstood it earlier. But the question is if in this particular case the 2 entangled photons are polarization entangled...
Yes, I am well aware of this theorem.
I directly agree, which is why I thought such entanglement was impossible.
Still, many people try to use entanglement indirectly.
Me too :).
Tkanks, for reply.
here :
https://en.wikipedia.org/wiki/Spontaneous_parametric_down-conversion
i found it :
This suggests to me that it is possible.
But !!!
According to my computer simulations, such a device can be easily used to send information at superluminal speed, which is ruled out...
Hello everyone!
I don't know where to look for information - maybe here it will work :)
Is there a generator of entangled photons with fixed polarization?
If not, is it theoretically possible to build or is it against the laws of physics.
I need this knowledge for further computer...