Quantum Zeno effect by indirect measurement: The effect of the detector

Journal Article · Fri Oct 01 04:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.044101· OSTI ID:20646443

Makris, M G ^[1]; Lambropoulos, P ^[1]

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1. Department of Physics, University of Crete, P.O. Box 2208, Heraklion 71003, Crete (Greece)

We study the quantum Zeno effect in the case of indirect measurement, where the detector does not interact directly with the unstable system. Expanding on the model of Koshino and Shimizu [Phys. Rev. Lett. 92, 030401 (2004)] we consider a realistic Hamiltonian for the detector with a finite bandwidth. We also take explicitly into account the position, the dimensions, and the uncertainty in the measurement of the detector. Our results show that the quantum Zeno effect is not expected to occur, except for the unphysical case where the detector and the unstable system overlap.

• OSTI ID: 20646443
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DETECTION
HAMILTONIANS
MEASURING METHODS
OPTICS
QUANTUM MECHANICS
STABILITY