When I am studying photon physics, one question come to my mind about mixed states. Let a photon be in the state |h> = (a;b) where (a;b) is a column vector with complex entries. How can we calculate the probability of its passing through an x-polaroid?(adsbygoogle = window.adsbygoogle || []).push({});

My approach: p(h->x) = |<h|x>||<h|x>|* = |a|^2.

But I'm not sure about it.. Can anyone check this idea whether it is true or not.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Photon's Probability of Passing Through Polaroid

**Physics Forums | Science Articles, Homework Help, Discussion**