Equation Icon  ( ) @-- h2-- 2 ih @ty(t, x) = - 2m \~/ + Vext(x) + k nc y(t,x) * +k {2~ny(t, x) + ~my (t,x)}; (186) ( ) @ h2 2 ih --f(t, x) = - --- \~/ + Vext(x) + k 2nT f(t,x) @t 2m +k mT f†(t,x). (187)