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Fortschritte der Physik
Paper

The beginning of time observed in quantum jumps

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Abstract

The phenomenon of quantum jumps observed in a single ion stored in a trap brings to light intimate connections between three different concepts of quantum physics: (i) quantum state trajectories, (ii) Gamow states, and (iii) the arrow of time. In particular, it allows us to identify the starting time of the semigroup time evolution.

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Publication

Fortschritte der Physik