密度泛函的基础是一个假定：假定一个多粒子体系的任何性质都是基态电子密度的函数。
The basic idea of DFT is an ansatz, which assumes that any properties of many-body system can be determined by the ground state density.
在一维量子非线性晶格的研究中，特别是动力学的研究中，求解多粒子体系的含时薛定谔方程是不可避免的。
In the study of 1d quantum nonlinear lattices, especially in the study of dynamics, it is unavoidable to solve the many-body time-dependent Schrodinger equation.
在一维量子非线性晶格的研究中，特别是动力学的研究中，求解多粒子体系的含时薛定谔方程是不可避免的。
In the study of 1d quantum nonlinear lattices, especially in the study of dynamics, it is unavoidable to solve the many-body time-dependent Schrodinger equation.
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