1. In the past twenty years, owing to the discovery of Berry's geometrical phase in 1984, a lot of efforts have been made on quantal adiabatic theorem and geometrical phase.
2. A quantal system with Hamiltonian which varies adiabatically with time obeys the adiabatic theorem, but the state of the system is not a stationary state having the stable property.
哈密顿量随时间绝热改变的量子系统遵循绝热定理,但系统波函数不具有定态的稳定性质,它们不是定。
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3. A quantal system with Hamiltonian which varies adiabatically with time obeys the adiabatic theorem, but the state of the system is not a stationary state having the stable property.