Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.88.042321
Title: Quantum Zeno effect of general quantum operations
Authors: Li, Y.
Herrera-Martí, D.A.
Kwek, L.C. 
Issue Date: 16-Oct-2013
Citation: Li, Y., Herrera-Martí, D.A., Kwek, L.C. (2013-10-16). Quantum Zeno effect of general quantum operations. Physical Review A - Atomic, Molecular, and Optical Physics 88 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.88.042321
Abstract: 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. © 2013 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/116558
ISSN: 10502947
DOI: 10.1103/PhysRevA.88.042321
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