Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Quantum Information and Measurement (QIM)

Quantum Zeno Effect by Incomplete Measurements

Manchao Zhang, Chun-Wang Wu, Yi Xie, Wei Wu, Ping‐Xing Chen

Published Jan 1, 2019• 0 citations
Publisher

Abstract

We investigate the quantum Zeno effect caused by incomplete measurements. We show that a more efficient quantum Zeno effect than the complete measurements case can occur if parameters are properly set.
DOI
10.1364/qim.2019.f5a.19

Related papers

Incomplete ‘‘collapse’’ and partial quantum Zeno effect

Asher Peres, Amiram Ron

If the interaction generating a quantum measurement is too weak to completely ''collapse'' the wave function, a partial quantum Zeno effect may result. An experimental test is proposed.Received 4 April 1990DOI:https://doi.org/10.1103/PhysRevA.42.5720©1990 American Physical Society

Physical Review A•Nov 1, 1990•101 citations

Incomplete entanglement: Consequences for the quantum Zeno effect

R. Rossi, A.R. Bosco de Magalhães, Maria Carolina Nemes

We show that the quantum Zeno effect (QZE) prevails even if the entanglement with the measuring probe is not complete. The dynamics toward the asymptotic regime as a function of $N$, the number of measurements, reveals surprising results: the transition probability, for some values of the coupling to the measuring probe, may decrease much faster than the normal QZE.

arXiv:0806.2974•Physical Review A•Oct 23, 2008•2 citations

Quantum Zeno effect by incomplete measurements

Manchao Zhang, Chun-Wang Wu, Yi Xie +2 more

Quantum Information Processing•Feb 18, 2019•6 citations

The quantum Zeno effect: a solvable model for indirect pre-measurements

Anil Shaji

A simple model of indirect pre-measurements on an unstable quantum state is presented in this paper. The model is completely solvable and the solutions are used to compare the time evolution of the unstable state with and without the influence of the pre-measurement. We find that by choosing the details of the process of pre-measurement appropriately, it is possible to observe both suppression and enhancement of the rate of decay of the unstable state. When the pre-measurements are assumed to lead on to actual measurements, we see that the quantum Zeno effect, and in some instances the 'anti-Zeno' effect, can be produced by repeating the measurement many times in succession. The Zeno effect can appear in our model either as a real consequence of repeated measurements or sometimes merely as an artefact of the manner in which the observations on the system are performed. The anti-Zeno effect appears almost exclusively as an artefact of the details of the measurement. Numerical investigations are included to delineate the regimes in which the quantum Zeno effect and possibly the anti-Zeno effect can occur.

Journal of Physics A Mathematical and General•Nov 4, 2004•4 citations

Nonuniform quantum Zeno effect

V. M. Tkachuk

We study the quantum Zeno effect in the case when the time intervals between two consecutive measurements are different.It can be called a nonuniform quantum Zeno effect.Explicit examples of the nonuniform quantum Zeno effect are presented.We also show that maximal quantum Zeno effect in the case of a large number of measurements can be achieved when the time intervals between consecutive measurements are equal.

Journal of Physical Studies•Jan 1, 2011•1 citation

Quantum Zeno effect of general quantum operations

Ying Li, David A. Herrera-Martí, L. C. Kwek

In this paper, we show that the quantum Zeno effect can occur for generalized quantum measurements or operations. As a consequence of frequently performing nonselective measurements (or trace-preserving completely positive maps), the evolution of a certain measurement-invariant state is governed by an effective Hamiltonian defined by the measurement (or map) and the free-evolution Hamiltonian. For selective measurements, the state may change randomly with time according to measurement outcomes, but some physical quantities (operators) still evolve according to the effective Hamiltonian.

arXiv:1305.2464•Physical Review A•Oct 16, 2013•12 citations
We show that the quantum Zeno effect (QZE) prevails even if the entanglement with the measuring probe is not complete. The dynamics toward the asymptotic regime as a function of NNN, the number of measurements, reveals surprising results: the transition probability, for some values of the coupling to the measuring probe, may decrease much faster than the normal QZE.
A simple model of indirect pre-measurements on an unstable quantum state is presented in this paper. The model is completely solvable and the solutions are used to compare the time evolution of the unstable state with and without the influence of the pre-measurement. We find that by choosing the details of the process of pre-measurement appropriately, it is possible to observe both suppression and enhancement of the rate of decay of the unstable state. When the pre-measurements are assumed to lead on to actual measurements, we see that the quantum Zeno effect, and in some instances the 'anti-Zeno' effect, can be produced by repeating the measurement many times in succession. The Zeno effect can appear in our model either as a real consequence of repeated measurements or sometimes merely as an artefact of the manner in which the observations on the system are performed. The anti-Zeno effect appears almost exclusively as an artefact of the details of the measurement. Numerical investigations are included to delineate the regimes in which the quantum Zeno effect and possibly the anti-Zeno effect can occur.
In this paper, we show that the quantum Zeno effect can occur for generalized quantum measurements or operations. As a consequence of frequently performing nonselective measurements (or trace-preserving completely positive maps), the evolution of a certain measurement-invariant state is governed by an effective Hamiltonian defined by the measurement (or map) and the free-evolution Hamiltonian. For selective measurements, the state may change randomly with time according to measurement outcomes, but some physical quantities (operators) still evolve according to the effective Hamiltonian.