Physics seminar by Farhang Loran

Time is a fundamental and mysterious concept in physics. It plays a crucial role in both classical and quantum theories of nature, but its precise meaning and nature remain elusive. In this talk, I will first discuss the concept of time in special and general relativity. In these theories, time and space are dissolved into the entity of spacetime, which depends on the observer and the gravitational field. I will then discuss time in non-relativistic quantum mechanics, where, unlike the position,