Journal of Physics A: Math. Gen.
The vacuum excitation and squeezing of two harmonic oscillators with delta-kicked interactions for four types of elementary coupling are studied. The exact quantum motion for the Heisenberg operators and the explicit form of squeezing operators are found. The variances are calculated to study the squeezing properties for position, momentum and generalized quadrature operators.
J.-Y. Ji+ and D. Peak, “The Vacuum Excitation and Squeezing Properties of Two Quantum Oscillators with Delta-Kicked Interactions,” Journal of Physics A: Math. Gen. 34, 3429- 3436 (2001).