论文标题
许多粒子量子动力学中的力和压力
Force and pressure in many-particle quantum dynamics
论文作者
论文摘要
牛顿的力概念在许多粒子量子系统（例如裂变核）动力学的某些方面可能很有用。遵循Ehrenfest的方法，我们表明，在两个子系统之间的边界上作用的操作员可以描述扩展量子系统部分之间的量子动力。由于短期粒子相互作用而对力的贡献也可以以相同的方式处理。这包括通过局部功能在密度功能理论中处理的相互作用效应。将力运算符应用于几个简单模型以演示该方法。
The Newtonian concept of force may be useful in some aspects of the dynamics of many-particle quantum systems such as fissioning nuclei. Following Ehrenfest's method, we show that the quantum kinetic force between parts of an extended quantum system can be described by an operator acting on the boundary between the two subsystems. The contribution to the force due to a short-ranged particle interaction can also be treated in the same way. This includes interaction effects treated in density functional theory by local functionals. The force operators are applied to several simple models to demonstrate the method.
