Quantum Zeno effect by incomplete measurements
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A measurement process needs a time duration in many actual cases, such as the measurement on atomic system by the electron shelving technique. If this timescale is deficient, the measurement would be incomplete. Here, we investigate the quantum Zeno effect by incomplete measurements. We show that an efficient freeze of the quantum state by incomplete measurements is available. And interestingly, this state freeze can be more significant than that obtained in the complete measurement case if the parameters of incomplete measurements are properly set.
KeywordsQuantum Zeno effect Quantum measurements Atomic system
This work is supported by the National Basic Research Program of China under Grant No. 2016YFA0301903; the National Natural Science Foundation of China under Grants No. 11174370, No. 11304387, No. 61632021, No. 11305262, No. 11574398 and No. 61205108; and the Research Plan Project of National University of Defense Technology under Grant No. ZK16-03-04.
- 6.Wang, X.B., You, J.Q., Nori, F.: Quantum entanglement via two-qubit quantum Zeno dynamics. Phys. Rev. A. 77, 3195 (2008)Google Scholar
- 11.Chaudhry, A.Z., Gong, J.: Zeno and anti-Zeno effects on dephasing. Phys. Rev. A. 90, 165 (2014)Google Scholar
- 18.Keisuke, F., Katsuji, Y.: Anti-Zeno effect for quantum transport in disordered systems. Phys. Rev. A. 82, 5929 (2010)Google Scholar