Polarized light; maximum number of disagreements?

xb4byish

Starting with 2 vertical photons, how can we argue that the maximum number of disagreements and minimum number for +30° and -30° is Nmin(-30°,30°) ≤ N(60°,0°) ≤ Nmax(-30°,30°)? and should we also not rotate the light?

Vanadium 50

What are you talking about?

DrChinese

Welcome to PhysicsForums, xb4byish!

I don't follow your question either. However, if by chance you are referring to entangled photons: they cannot be considered as vertically polarized.

mfb

What are Nmin(-30°,30°), N(60°,0°) and Nmax(-30°,30°)?

What do you mean with maximum number of disagreements? Maximal number of photon pairs where two detectors will see different orientations for both photons? That is just the number of photon pairs. The average number is more meaningful.

xb4byish

perhaps its average number of disagreements. But i mean how can we prove the number of disagreements for (60,0) is between the minimum number of disagreements of (-30,0) and the maximum number of disagreements between the maximum number of disagreements of (30,0)

mfb

I don't understand that question.

There is an explicit formula for the "disagreement probability", you can derive it simply by looking at the 4 different cases. That should help.