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Journal of the Physical Society of Japan

Quantum Zeno Subspaces and Decoherence

Paolo Facchi A, Saverio Pascazio

Published Jan 1, 2003• 6 citations
Publisher

Abstract

A profound consequence of the quantum Zeno effect is the partitioning of the total Hilbert space into quantum Zeno subspaces, among which any transition is hindered. Such a phenomenon can be due to frequent nonselective measurements, frequent unitary kicks or strong continuous coupling. Its practical relevance for halting decoherence is discussed and the problem of timescales is considered.

DOI
10.1143/jpsjs.72sc.30

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A profound consequence of the quantum Zeno effect is the partitioning of the total Hilbert space into quantum Zeno subspaces, among which any transition is hindered. Such a phenomenon can be due to frequent nonselective measurements, frequent unitary kicks or strong continuous coupling. Its practical relevance for halting decoherence is discussed and the problem of timescales is considered.
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