论文标题
如何得出预测性主动场理论：逐步教程
How to derive a predictive active field theory: a step-by-step tutorial
论文作者
论文摘要
主动软物质的研究已发展为最快增长的物理领域之一。可以通过现象学考虑或通过微观模型的粗粒形成的现场理论是理解活动系统的非常有用的工具。在这里，我们对特定的粗粒程序（IEM）进行了详细的综述。 IEM允许对相互作用的活动粒子系统进行预测场理论的系统微观推导。我们详细说明如何将其用于活动B+的微观推导，该模型B+是广泛使用的标量活动物质模型。还讨论了扩展和可能的未来应用。
The study of active soft matter has developed into one of the most rapidly growing areas of physics. Field theories, which can be developed either via phenomenological considerations or by coarse-graining of a microscopic model, are a very useful tool for understanding active systems. Here, we provide a detailed review of a particular coarse-graining procedure, the interaction-expansion method (IEM). The IEM allows for the systematic microscopic derivation of predictive field theories for systems of interacting active particles. We explain in detail how it can be used for a microscopic derivation of active model B+, which is a widely used scalar active matter model. Extensions and possible future applications are also discussed.
