23.5: Postulate 5- Time Evolution
The wave function of a system evolves in time according to the time-dependent Schrödinger equation:
\[ \hat{H} \Psi({\bf r}, t) = i \hbar \dfrac{\partial \Psi}{\partial t}. \label{24.5.1} \]
The central equation of quantum mechanics must be accepted as a postulate.