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Proceedings Paper

Lower bounds for decoherence
Author(s): Lawrence S. Schulman
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Paper Abstract

Both quantum computing and tests of certain theories of quantum measurement require tight control over entanglement of the degrees of freedom of the system with those of the environment. In particular, one wishes to avoid entanglement-induced decoherence due to the confining of the system by the macroscopic apparatus. Nonetheless, when the system interacts with its walls (treated quantum mechanically), there is an inevitable intertwining of degrees of freedom. We show that this need not lead to entanglement, hence decoherence. It will generally lead to error. The wave function optimization required to avoid decoherence is also examined.

Paper Details

Date Published: 1 July 1997
PDF: 7 pages
Proc. SPIE 3076, Photonic Quantum Computing, (1 July 1997); doi: 10.1117/12.277663
Show Author Affiliations
Lawrence S. Schulman, Clarkson Univ. (United States)

Published in SPIE Proceedings Vol. 3076:
Photonic Quantum Computing
Steven P. Hotaling; Andrew R. Pirich, Editor(s)

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