Quantum zeno effect

A Conceptual Analysis of Quantum Zeno; Paradox, Measurement, and Experiment

“…The position of other authors Petrosky et al [112,113], Block and Berman [90], and Fearn and Lamb [8] would appear to be that because analysis of the experiments does not require the collapse postulate, they are not demonstrating the quantum Zeno effect (although the distinction of Ref. [90], mentioned above, between quantum Zeno``effect'' and``paradox,'' allows the statement that Ref.…”

Quantum Zeno and anti-Zeno effects in the Friedrichs model

“…In this experiment, the Rabi oscillations have been used in order to demonstrate that the repeated observations slow down the transition process. However, the detailed analysis [4][5][6] has shown that the results of this experiment could equally well be understood using a density matrix approach for the whole system. Recently, an experiment similar to [3] has been performed by Balzer et al [7] on a single trapped ion.…”

Unstable Systems and Quantum Zeno Phenomena in Quantum Field Theory

“…Our starting point was indeed Eq. (6). However, it is always possible to mimic the effect of pulsed measurements in terms of the coupling to a suitable system, performing a continuous measurement process.…”

“…The dashed (full) line is the survival probability without (with) measurements. The gray line is the interpolating exponential (6).…”

“…When measurements are performed at time intervals τ , we get the effective decay rate γ eff (τ ). The full lines represent the survival probabilities and the dotted lines their exponential interpolations, according to (6). If τ = τ 1 < τ * one obtains QZE.…”