Seonglae Cho시간의 흐름에 따라 계의 상태가 바뀌는 과정
시간의 변화를 물리학에서는 위와 같이 정의
Time evolution - Wikipedia
Time evolution is the change of state brought about by the passage of time, applicable to systems with internal state (also called stateful systems). In this formulation, time is not required to be a continuous parameter, but may be discrete or even finite.
https://en.wikipedia.org/wiki/Time_evolution