Comment by NounVerber on Entangled Photons · 2013-08-13T20:06:16.065Z · LW · GW

The state for "unknown opposite polarization" can be written as: √(1/2) * ( [ A=(1 ; 0) ∧ B=(0 ; 1) ] - [ A=(0 ; 1) ∧ B=(1; 0) ] )

I don't follow. I have no idea where this equation is coming from and how to interpret it. Can anyone make me understand this, please?