论文标题
在线性响应理论中，惯性的无元时刻和伪造模式的去除
Thouless-Valatin moment of inertia and removal of the spurious mode in the linear response theory
论文作者
论文摘要
在平均场水平上的对称性破裂导致在线性响应理论中恢复Nambu-Goldstone（NG）模式的对称性的外观。这些模式代表了系统的一种特殊的集体运动。但是，它们可以干扰计算出的内在物理激发，因此通常被称为虚假模式。我通过使用有限的振幅方法形式主义讨论转化和旋转NG模式以及与这些模式相关的惯性参数。我还将讨论如何从计算出的过渡强度函数中删除虚假模式。
Symmetry breaking at the mean-field level leads to an appearance of a symmetry restoring Nambu-Goldstone (NG) mode in the linear response theory. These modes represent a special kind of collective motion of the system. However, they can interfere with the calculated intrinsic physical excitations and, hence, they are often called as spurious modes. I discuss translational and rotational NG mode and the inertia parameter associated with these modes, by using the finite amplitude method formalism. I will also discuss how to remove spurious mode from the calculated transition strength function.
