DocumentCode
3106714
Title
Control of decoherence in open quantum systems using feedback
Author
Ganesan, Narayan ; Tarn, Tzyh-Jong
Author_Institution
Department of Electrical and Systems Engineering, Washington University in St. Louis, MO-63130. ng@ese.wustl.edu
fYear
2005
fDate
12-15 Dec. 2005
Firstpage
427
Lastpage
433
Abstract
Quantum feedback is assuming increasingly im- portant role in quantum control and quantum information processing. In this work we analyze the application of such feedback techniques in eliminating decoherence in open quan- tum systems. In order to apply such system theoretic methods we first analyze the invariance properties of quadratic forms which corresponds to expected value of a measurement and present conditions for decouplability of measurement outputs of such time-varying open quantum systems from environmental effects.
Keywords
Coherence; Control systems; Equations; Feedback; Hilbert space; Information processing; Open loop systems; Quantum mechanics; Time varying systems; Wave functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Decision and Control, 2005 and 2005 European Control Conference. CDC-ECC '05. 44th IEEE Conference on
Print_ISBN
0-7803-9567-0
Type
conf
DOI
10.1109/CDC.2005.1582193
Filename
1582193
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