6.2 Hartree六程 无相互作用？ Write wavefunction as a simple product of single particle states: Hartree积(HP多体波函数) Ψ(r1,…,rn)=p1(r1)p2(r2).pn(rn) Hard Product of Easy Total energy E=∑6 >8 Chapter 6 HF无相互作用？ 8 Chapter 6 HF 6.2 Hartree方程 Hartree 积 （HP多体波函数） Total energy