The cycle model of a quantum Carnot refrigeration cycle working with many non-interacting spin-1/2 systems and consisting of two isothermal and two adiabatic processes is established.
建立以无相互作用的自族为1/2的粒子组成的自旋系统为工质，由两个绝热和两个等温过程组成的量子卡诺制冷循环模型。
A new model such as the causal evolution model of spin networks is needed to describe a dynamics process of loop quantum gravity.
还将这种方法与缠结理论做了比较；要描述圈量子引力的动力学过程，需要新的模型，自旋接网圈的因果演化模型就是其中的一种。
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。
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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