Information, disturbance, and Hamiltonian quantum feedback control

Doherty, Andrew C., Jacobs, Kurt and Jungman, Gerard (2001) Information, disturbance, and Hamiltonian quantum feedback control. Physical Review A, 63 6: 062306-1-062306-13. doi:10.1103/PhysRevA.63.062306

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Author Doherty, Andrew C.
Jacobs, Kurt
Jungman, Gerard
Title Information, disturbance, and Hamiltonian quantum feedback control
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2001
Sub-type Article (original research)
DOI 10.1103/PhysRevA.63.062306
Open Access Status File (Publisher version)
Volume 63
Issue 6
Start page 062306-1
End page 062306-13
Total pages 13
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract We consider separating the problem of designing Hamiltonian quantum feedback control algorithms into a measurement (estimation) strategy and a feedback (control) strategy, and we consider optimizing desirable properties of each under the minimal constraint that the available strength of both is limited. This motivates concepts of information extraction and disturbance that are distinct from those usually considered in quantum information theory. Using these concepts, we identify an information tradeoff in quantum feedback control.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Adaptive Phase Measurements
Optical Feedback
Homodyne Detection
Posteriori States
Wave-equation
Single-atom
Mechanics
Systems
Coherence
Position
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Physical Sciences Publications
 
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Created: Wed, 19 Sep 2007, 16:29:53 EST