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中文摘要：
在抛物量子点中电子与体纵光学声子强耦合的条件下，应用Peaker变分方法得出了电子的基态和第一激发态的本征能量及基态和第一激发态本征波函数．量子点中这样的二能级体系可作为一个量子比特．当电子处于基态和第一激发态的叠加态时，计算出电子在空间的概率分布作周期性振荡．并且得出了振荡周期随受限长度及耦合强度的变化关系．
英文摘要：
On the condition of electric-LO phonon strong coupling in parabolic quantum dot, we obtain the eigenenergy and the eigenfuctions of the ground state and the first excited state by using variational method of Peakar type. This system in quantum dot may be employed as a two-level quantum system-qubit. When the electron is in the superposition state of the ground state and the first excited state, we obtain the time evolution of the electron density. It is shown that the period of oscillation decreases with the strength of coupling increasing when the confined length is constant. And the period of oscillation increases with the confined length increasing when the strength coupling is constant.
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