Physics – Quantum Physics
Scientific paper
2011-07-27
Phys. Rev. A 84, 032121 (2011)
Physics
Quantum Physics
Scientific paper
10.1103/PhysRevA.84.032121
The influence of repeated projective measurements on the dynamics of the state of a quantum system is studied in dependence of the time lag $\tau$ between successive measurements. In the limit of infinitely many measurements of the occupancy of a single state the total system approaches a uniform state. The asymptotic approach to this state is exponential in the case of finite Hilbert space dimension. The rate characterizing this approach undergoes a sharp transition from a monotonically increasing to an erratically varying function of the time between subsequent measurements.
Ingold Gert-Ludwig
Talkner Peter
Yi Juyeon
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