Quantum sensitivity of squeezed Schrodinger cat states

Abstract

Theoretically it is shown that high quantum sensitivity of the squeezed state of the Schrodinger cat relative to the non-squeezed state can be achieved. For realization of squeezing the Schrodinger cat state, a parametric process in a nonlinear optical crystal is used. To visualize the squeezed state of the Schrodinger cat with and without a displacement, the values of the Wigner functions are calculated.

Keywords

• Schrodinger cat state
• Even cat state
• Squeezed state
• Parametric process
• Quantum sensitivity
• Phase-space displacement sensitivity