Impossibility of large phase shifts via the giant Kerr effect with single-photon wave packets
Impossibility of large phase shifts via the giant Kerr effect with single-photon wave packets
An approximate analytical solution is presented, along with numerical calculations, for a system of two single-photon wave packets interacting via an ideal, localized Kerr medium. It is shown that, because of spontaneous emission into the initially unoccupied temporal modes, the cross-phase-modulation in the Schr\"odinger picture is very small as long …