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Title: Quantum zeno effect of general quantum operations
Authors: Li, Ying
Herrera-Marti, David A.
Kwek, Leong Chuan
Issue Date: 2013
Citation: Li, Y., Herrera-Martí, D. A., & Kwek, L. C. (2013). Quantum zeno effect of general quantum operations. Physical Review A, 88(4), 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.
ISSN: 1050-2947 (print)
1094-1622 (online)
Other Identifiers: 10.1103/PhysRevA.88.042321
Appears in Collections:Journal Articles

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