二次型含时间的谐振子系统的压缩态和压缩相干态

SQUEEZED STATES AND SQUEEZED-COHERENTSTATES OF THE GENERALIZED QUADRATICTIME-DEPENDENT HARMONICOSCILLATOR

利用演化算符方法研究了最一般的二次型含时间的谐振子系统的时间演化和压缩态问题,进一步讨论了脉动质量的受迫谐振子系统的压缩态和高n压缩态. 最后,构造了在时间演化过程中保持最小测不准关系的压缩相干态和高n压缩相干态.

The problem of time evolution and squeezed states of the generalized quadratic time-dependent harmonic oscillator is studied by making use of the time-evolution operator approach. Then, the squeezed states and high-n squeezed states of the driven harmonic oscillator with strongly pulsating mass are constructed. Finally, we show how the squeezed-coherent states and high-n squeezed-coherent states, which preserve the minimum uncertainty codition, can be generated.