Generation of macroscopically distinguishable quantum states and detection by the squeezed-vacuum technique
Paolo Tombesi, Antonio Mecozzi · Journal of the Optical Society of America B · 1987
Here it is shown that, for a wide class of nonlinear Hamiltonians, an essentially classical initial state will evolve into the coherent superposition of distinguishable quantum states. The detection of the interference fringes can be performed by beating the light leaving the nonlinear optical medium with light from a local oscillator. A model for the loss in the detection apparatus is introduced. The squeezed-vacuum technique is introduced finally as a means of enhancing the interference fringes displaying the distinguishable quantum state.