The CPT symmetry breaking

In case we place the polarizers in straight line (without mirror) into cross-polarized position, in each case the zero output performance is obtained. All other polarized directions (not +45o, or -45o), with inserting the appropriate cross-polarizer (with or without mirror): output is equivalent to zero (expressed to ideal case). In the experiment: I+45o>+I-45o>= I is not possible, linear superpositioned state>, because <a I b>=0, and we set the input already to one of the polarizations. Inserting e.g. a metal mirror between the polarisers and generating the I+45o>=1 input state: the output is I-45o>=1.