Using mean field theory, the effects of depolarization field on the thermodynamic properties of ferroelectric superlattice is studied within the framework of the transverse Ising model.
应用平均场理论，在横场伊辛模型的框架内，研究了退极化场对铁电超晶格热力学性质的影响。
However, the values of the parameters of the function are different from those derived using the classical Landau theory based on the mean field approximation.
但在聚合体存在的情形下，函数参数的数值不同于在均场近似下由经典朗道理论所得到的数值。
This problem describes BCS pairing. It is very convenient to construct the mean field theory using the functional integral representation.
此问题描述BCS配对。利用泛函积分表象来建立平均场理论是十分方便的。
Generally, physicists derive steady-state degree distribution of networks by using the mean-field theory, master-equation and rate-equation approach, but their methods are not rigorous mathematically.
物理学家一般采用平均场方法、率方程方法和主方程方法研究网络的稳态度分布，但都不是严格证明。
Generally, physicists derive steady-state degree distribution of networks by using the mean-field theory, master-equation and rate-equation approach, but their methods are not rigorous mathematically.
物理学家一般采用平均场方法、率方程方法和主方程方法研究网络的稳态度分布，但都不是严格证明。
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