- D This Concept Can Be Extended In The Context Of A Cavity See E G Phys Rev Lett 74 4763 1995 Pbs Input Polari 1 (72.62 KiB) Viewed 16 times
d. This concept can be extended in the context of a cavity (see, e.g. Phys. Rev. Lett. 74, 4763, 1995): PBS input polarization rotator PBS output Assume a cavity with a quality factor Q such that a photon travels inside it N times before exiting. After entering the cavity, a photon encounters a polarization rotator, which rotates its polarization by 90°/N. It then enters into an MZI, but the beam-splitters are polarization sensitive (called PBS, transmitting horizontal polarization and reflecting vertical polarization). The MZI has a bomb in one arm. We introduce a vertically polarized photon into the cavity, and measure the polarization of the photon at the output. Compare the probabilities of measuring vertical polarization at the output with and without the bomb. Write n as a function of N.