Heisenberg-picture approach to the exact quantum motion of a time-dependent harmonic oscillator
- 1 May 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 51 (5), 4268-4271
- https://doi.org/10.1103/physreva.51.4268
Abstract
The generalized invariant and the exact quantum motions are found in the Heisenberg picture for a harmonic oscillator with time-dependent mass and frequency in terms of classical solutions. It is shown that the Heisenberg pictures gives a relatively simpler picture that the Schrödinger picture and also manifestly exhibits the time independency of the invariant. We apply this method to the system with a linear sweep of frequency and Paul trap and study the squeezing properties.Keywords
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