I.E. Tamm’s scientific contributions

... In a fundamental paper [37], Aharonov and Bohm have shown both that all previous claims of TEUR are not general, and that it is indeed possible to measure E with infinite precision in a finite time. These conclusions are unexceptionable because they are a consequence of the external nature of the time variable and are not incompatible with the fact that, in certain quantum systems, various forms of TEUR may be valid; as, for example, in the quantum system considered by Mandelstamm and Tamm [38], where ∆t is the lifetime of a decaying system state and ∆E the uncertainty energy. Indeed Busch [39] distinguished the different types of ∆t that can be considered in eq. ...

Reference:

Two-Time Relativistic Bohmian Model of Quantum Mechanics