| GEOMETRIC PHASES AND SCHR?DINGER'S CAT STATE |
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| 作者姓名： | 吴锦伟 郭光灿 |
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| 作者单位： | Department of Physics, University of Science and Technology of China, Hefei 230026, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China and hy the Doctorate program Foundation of Institution of Higher Education of China. |
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| 摘 要： | A matrix method is presented for treating the dynamical phases, adiabatic phases and nonadiabatic phases of quantum superposition states. It is effective for any parameter-varying Hamiltonian system. As two examples, the evolution of mass-varying harmonic oscillator and the evolution of coherent states under parameter-varying displaced operator have been studied, Some new phenomena are obtained in the first case and the possible producing of so-called Schr?dinger's cat state by geometric phases is pointed out. The quantum state useful for the quantum optical verification of Berry's phase is introduced.
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| 收稿时间： | 1994-07-15 |
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