r˙=i∫dx−[(−1/2m)∂x2+v(x)]u1∗(x)xu2(x)+[(−1/2m)∂x2+v(x)]u2(x)xu1∗(x)=i/2m∫dx(∂x2u1∗(x))xu2(x)−(∂x2u2(x))xu1∗(x)\dot r=i\int dx -[(-1/2m)\partial^2 _x+v(x)]u^*_1(x)xu_2(x)+[(-1/2m)\partial^2 _x+v(...