Optical Schrodinger-cat states in a directional coupler
József Janszky, A Petak, C. Sibilia, M. Bertolotti, Петер Адам · Quantum and Semiclassical Optics Journal of the European Optical Society Part B · 1995
The evolution of an optical Schrodinger-cat state in a linear coupler is presented. It is shown how the quantum interference of the cat state deteriorates and recovers along the channels of the device. A similar behaviour of the photon number distribution pattern is noted.