Kerr cat states from the four-photon Jaynes-Cummings model
HONGCHEN FU, ALLAN SOLOMON · Journal of Modern Optics · 2002
We investigate the dynamics of a four-photon Jaynes—Cummings model for large photon number. It is shown that at certain times the cavity field is in a pure state which is a superposition of two Kerr states, analogous to the Schrödinger cat state (superposition of two coherent states) which occurs in the one and two photon cases.