Let J(x,t)≜iℏ2m(∂ψ∗∂xψ−ψ∗∂ψ∂x)J(x,t) \triangleq \frac{i\hbar}{2m}\left(\frac{\partial\psi^*}{\partial x}\psi - \psi^*\frac{\partial\psi}{\partial x}\right)J(x,t)≜2miℏ(∂x∂ψ∗ψ−ψ∗∂x∂ψ)Continuity Equation