Schäfer Christian, Johansson Göran
Department of Microtechnology and Nanoscience, MC2, Chalmers University of Technology, 412 96 Göteborg, Sweden.
Department of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden.
Phys Rev Lett. 2022 Apr 15;128(15):156402. doi: 10.1103/PhysRevLett.128.156402.
We introduce a simple approach to how an electromagnetic environment can be efficiently embedded into state-of-the-art electronic structure methods, taking the form of radiation-reaction forces. We demonstrate that this self-consistently provides access to radiative emission, natural linewidth, Lamb shifts, strong coupling, electromagnetically induced transparency, Purcell-enhanced and superradiant emission. As an example, we illustrate its seamless integration into time-dependent density-functional theory with virtually no additional cost, presenting a convenient shortcut to light-matter interactions.
我们介绍了一种简单的方法，用于将电磁环境以辐射反作用力的形式有效地嵌入到最先进的电子结构方法中。我们证明，这种自洽方法能够实现对辐射发射、自然线宽、兰姆位移、强耦合、电磁诱导透明、珀塞尔增强发射和超辐射发射的研究。作为一个例子，我们展示了它几乎无需额外成本就能无缝集成到含时密度泛函理论中，为光与物质相互作用提供了一条便捷的捷径。
