Zeno effect on the Debye–Waller factor

The Debye-Waller factor may be close to one, hence ineffective for decoherence, if it is caused by high-frequency vibrations. This appears as a manifestation of the Zeno effect, where the quantum properties of a system do not deteriorate (or do so very slowly) if the system is subjected to frequentl...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2010-08, Vol.22 (30), p.304003-304003
Main Author: Levi, Andrea C
Format: Article
Language:English
Subjects:
Coherence
Condensed matter
Deterioration
High frequencies
Oscillations
Restoration
Scattering
Vibration
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Summary:The Debye-Waller factor may be close to one, hence ineffective for decoherence, if it is caused by high-frequency vibrations. This appears as a manifestation of the Zeno effect, where the quantum properties of a system do not deteriorate (or do so very slowly) if the system is subjected to frequently repeated interactions. In the case of atom-surface scattering, the decoherence time is shown to be long for high frequencies, such that the oscillation period is short in comparison to the duration of a collision. For a periodic perturbation the restoration of coherence, in the case where many oscillation periods take place during a prescribed time, is shown.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/22/30/304003