Quantum Evolution: Time Characteristic and Wave Function Module

This lecture discusses the evolution of a wave function over time, focusing on the time characteristic for the wave function module to return to its initial value. The instructor explains the concept of phase factor in quantum states and demonstrates how it affects the wave function's physical interpretation. By analyzing the phase factor's impact on the wave function's module, the lecture concludes with the condition for the wave function module to regain its initial value at a specific time.