How to Introduce Time Operator
arXiv:quant-ph/0609211 · doi:10.1016/j.aop.2006.10.007
Abstract
Time operator can be introduced by three different approaches: by pertaining it to dynamical variables; by quantizing the classical expression of time; taken as the restriction of energy shift generator to the Hilbert space of a physical system.
17 pages, accepted to be published in Annals of Physics