Universal Journal of Physics and Application Vol. 2(1-2), pp. 81 - 102
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TIME OPERATOR: THE CHALLENGE PERSISTS

AUTHOR(S) INFORMATION: Mielnik B. and Torres-Vega G.

ABSTRACT

Contrary to the conviction expressed by J. Kijowski [Phys. Rev. A 59, 897 (1999)] and shared in some other papers, the reasons to look for the ‘time operator' in the context of the standard quantum doctrine of orthogonal projectors and self-adjoint observables are highly questionable. Some improved solutions in terms of POV measures invite critical discussions as well.