Exact wave functions and nonadiabatic Berry phases of a time-dependent harmonic oscillator.
Exact wave functions and nonadiabatic Berry phases of a time-dependent harmonic oscillator.
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DOI:
10.1103/physreva.52.3352
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发表时间:
1995-10
期刊:
影响因子:
--
通讯作者:
Ji;Kim;Soh
中科院分区:
文献类型:
--
作者:
Ji;Kim;Soh
Exact Schr\"odinger wave functions of a time-dependent harmonic oscillator are found in analytically closed forms for the eigenstates of the generalized invariant and the instantaneous Hamiltonian. The cyclic initial state (CIS) and corresponding nonadiabatic Berry phase are also found exactly for a $\ensuremath{\tau}$-periodic Hamiltonian. There may exist $N\ensuremath{\tau}$-periodic CISs and corresponding Berry phases, but the cases with unstable classical motions do not have CISs in which cases Berry phases do not exist.