高阶导数自由能项和界面曲率
Higher derivative free energy terms and interfacial curvatures
摘要：
高阶导数项在场论中不起主要作用，因为在将这些项与物理可测量的量联系起来时，存在着相关的复杂性和固有的困难。分析了用于描述相分离系统的场论的情况下，高阶导数项的作用。在这些理论中，更高的导数项直接连接到一个界面自由能，其中包含的平均值和高斯曲率，并示出明确确定的界面的形状。
英文摘要：
High derivative terms do not play a major role in field theories because of the associated complexity and inherent difficulty in connecting these terms to physically measurable quantities. A role for higher derivative terms is analyzed for the case of field theories used to describe phase separated systems. In these theories, higher derivative terms are directly connected to an interfacial free energy which contains the mean and the Gaussian curvature and are shown to determine explicitly the shape of the interface.
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