Learning the energy curvature versus particle number in approximate density f...

The average energy curvature as a function of the particle number is a molecule-specific quantity, which measures the deviation of a given functional from the exact conditions...以粒子数为变量的平均能量曲率是一类分子特异性物理量，其用于衡量给定泛函（functional）与精确条件之间的偏差……