Inspired by the epidemic contact tracing technique, we propose a method to efficiently solve electromagnetics by tracing the energy distribution. The computational domain is adaptively decomposed, and the available computational resources are focused on those energy-active (infections) and their adjacent (exposed) domains, while avoiding the unnecessary computation of energy-null (unexposed) domains. As an example, we employ this method to solve several optics problems. The proposed method shows high efficiency while maintaining a good accuracy. The energy tracing method is based on the causality principle, and therefore is potentially transformative into other computational physics and associated algorithms.

翻译：在流行性接触追踪技术的启发下,我们提出了一个通过追踪能源分布有效解决电磁的方法。计算领域是适应性地分解的,现有的计算资源侧重于那些能量活性(感染)及其相邻(接触)领域,同时避免不必要地计算能量核(未接触)领域。举例来说,我们使用这种方法解决几个光学问题。提议的方法显示效率高,同时保持良好的准确性。能源追踪方法基于因果关系原则,因此有可能转化为其他计算物理和相关算法。