5-1定态微扰论 h=h+h=htnw n--parameter to show the smal hn ess Hy=Ey,v,=l Hn=6n(如n,9n)=6mn,∑|=15-1 定态微扰论 ,( , ) , 1 ,( , ) 1 ln ' 0 0 0 = = = = = − − = + = + H n n n m n m n  n n H E parameter t o show the smal ess H H H H W              