After integrating out the electron degrees of freedom, we derive the effective action describing the nuclear spins and the propagator for the spin wave.

将电子自由度积掉后，我们得到了描述核自旋的有效作用量以及核自旋的自旋波传播子。

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Meanwhile, we gave the state wave function in arbitrary hour by means of different methods, which made the comprehension for the spin of localized electron easier.

通过两种不同方法得到了任意时刻体系的状态波函数，加深了对定域电子自旋性质的掌握。

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By making use of the strong bound quantum dot model and neglecting the effects of impurity on electron wave function, this thesis is also reported how to use the spin of nuclear as the quantum bit.

利用强束缚量子点模型，忽略杂质对于电子波函数的影响，我们还讨论了如何利用核自旋构造量子位。

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