Zeno dynamics, indistinguishability of state, and entanglement
Authors: Smerzi A.
Autors Affiliation: QSTAR, INO-CNR and LENS, Largo Enrico Fermi 2, 50125 Firenze, Italy
Abstract: According to the quantum Zeno effect (QZ), frequent observations of a system can dramatically slow down its dynamical evolution. We show that the QZ is a physical consequence of the statistical indistinguishability of neighboring quantum states. The time scale of the problem is expressed in terms of the Fisher information and we demonstrate that the Zeno dynamics of particle entangled states might require quite smaller measurement intervals than classically correlated states. We propose an interferometric experiment to test the prediction.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 109 (15) Pages from: 150410 to: 150410
More Information: We gratefully acknowledge discussions with T. Calarco, P. Hyllus, G. Kurizki, and S. Pascazio. This work has been supported by the EU-STREP Project QIBEC and by the PAT within the activities of the BEC center. QSTAR is the MPQ, IIT, LENS, UniFi joint center for Quantum Science and Technology in Arcetri.DOI: 10.1103/PhysRevLett.109.150410Citations: 35data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-01-17References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here