Three-photon states in phase space

Abstract

Abstract⎯The cascade parametric down-conversion of photons in the optical resonator in pulsed regime is considered for production of three-photon states. Photon number distributions, as well as the Wigner functions are investigated for subharmonic mode in quantum approach. The three-photon structure of subharmonic mode and its three-phase localization in phase-space are shown.

Generation of matter threefold star state by dynamical transfer from photonic counterpart

“…is known in the literature like the threefold star state [37,38,39]. The preparation of such a state inside a cavity can be made by a photonic crystal capable of enhancing the harmonic generation produced by either a χ (2) or χ (3) nonlinearity.…”