Aryasetiawan F, Biermann S
Research Institute for Computational Sciences, AIST, 1-1-1 Umezono, Tsukuba Central 2, Ibaraki 305-8568, Japan.
Phys Rev Lett. 2008 Mar 21;100(11):116402. doi: 10.1103/PhysRevLett.100.116402. Epub 2008 Mar 19.
Hedin's equations for the electron self-energy and the vertex have originally been derived for a many-electron system with Coulomb interaction. In recent years, it has been increasingly recognized that spin interactions can play a major role in determining physical properties of systems such as nanoscale magnets or of interfaces and surfaces. We derive a generalized set of Hedin's equations for quantum many-body systems containing spin interactions, e.g., spin-orbit and spin-spin interactions. The corresponding spin-dependent GW approximation is constructed.
赫丁关于电子自能和顶点的方程最初是针对具有库仑相互作用的多电子系统推导出来的。近年来，人们越来越认识到自旋相互作用在确定诸如纳米级磁体或界面及表面等系统的物理性质方面可以发挥主要作用。我们为包含自旋相互作用（例如自旋 - 轨道和自旋 - 自旋相互作用）的量子多体系统推导了一组广义的赫丁方程。构建了相应的自旋相关GW近似。
