# Disclosing hidden information in the quantum Zeno effect: Pulsed measurement of the quantum time of arrival

@article{Echanobe2008DisclosingHI, title={Disclosing hidden information in the quantum Zeno effect: Pulsed measurement of the quantum time of arrival}, author={Javier Echanobe and Adolfo del Campo and Juan Gonzalo Muga}, journal={Physical Review A}, year={2008}, volume={77}, pages={032112} }

Departamento de Qu´imica-F´isica, UPV-EHU, Apartado 644, 48080 Bilbao, SpainRepeated measurements of a quantum particle to check its presence in a region of space wasproposed long ago (G. R. Allcock, Ann. Phys. 53, 286 (1969)) as a natural way to determine thedistribution of times of arrival at the orthogonal subspace, but the method was discarded because ofthe quantum Zeno eﬀect: in the limit of very frequent measurements the wave function is reﬂectedand remains in the original subspace. We…

## 28 Citations

Detector Models for the Quantum Time of Arrival

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Quantum particles are characterized, for a given preparation, by a fundamental stochasticity of their observable features, such as positions, momenta, energies, or times, e.g., times of arrival at a…

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Imagine an experiment where a quantum particle inside a box is released at some time in some initial state. A detector is placed at a fixed location inside the box and its clicking signifies arrival…

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We develop a general framework for the construction of probabilities for the time of arrival in quantum systems. The time of arrival is identified with the time instant when a transition in the…

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We review recent progress in understanding the arrival time problem in quantum mechanics, from the point of view of the decoherent histories approach to quantum theory. We begin by discussing the…

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We present a generalization of continuous position measurements that accounts for a spatially inhomogeneous measurement strength. This describes many real measurement scenarios, in which the rate at…

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A relation is found between pulsed measurements of the excited-state probability of a two-level atom illuminated by a driving laser and a continuous measurement by a second laser coupling the excited…

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Recent results on the decoherent histories quantization of simple cosmological models (minisuperspace models) are described. The most important issue is the construction, from the wave function, of a…

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Path integrals appear to offer natural and intuitively appealing methods for defining quantum-mechanical amplitudes for questions involving spacetime regions. For example, the amplitude for entering…

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