Figure 1. Photon a arrives at either detector or detector depending on the position of switch Р (1 or 2), photon b arrives at detector B

From

An Analogy Between the Properties of Light and Properties of Vortex-Wave Process in the Medium Similar to Superfluid 3Не-В

Liudmila B. Boldyreva

International Journal of Physics. 2015, 3(2), 74-83 doi:10.12691/ijp-3-2-5