Robust quantum parameter estimation: Coherent magnetometry with feedback

Stockton, John K., Geremia, J. M., Doherty, Andrew C. and Mabuchi, Hideo (2004) Robust quantum parameter estimation: Coherent magnetometry with feedback. Physical Review A, 69 3: 032109-1-032109-16. doi:10.1103/PhysRevA.69.032109

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Author Stockton, John K.
Geremia, J. M.
Doherty, Andrew C.
Mabuchi, Hideo
Title Robust quantum parameter estimation: Coherent magnetometry with feedback
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2004-03-01
Year available 2004
Sub-type Article (original research)
DOI 10.1103/PhysRevA.69.032109
Open Access Status File (Publisher version)
Volume 69
Issue 3
Start page 032109-1
End page 032109-16
Total pages 16
Place of publication College Park, Maryland, United States
Publisher American Physical Society
Language eng
Abstract We describe the formalism for optimally estimating and controlling both the state of a spin ensemble and a scalar magnetic field with information obtained from a continuous quantum limited measurement of the spin precession due to the field. The full quantum parameter estimation model is reduced to a simplified equivalent representation to which classical estimation and control theory is applied. We consider both the tracking of static and fluctuating fields in the transient and steady-state regimes. By using feedback control, the field estimation can be made robust to uncertainty about the total spin number.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Physical Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 58 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 63 times in Scopus Article | Citations
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Created: Wed, 19 Sep 2007, 16:58:23 EST