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Optimal State Estimation for Cavity Optomechanical Systems

Autor(en)
Witlef Wieczorek, Sebastian Hofer, Jason Hoelscher-Obermaier, Ralf Riedinger, Klemens Hammerer, Markus Aspelmeyer
Abstrakt

We demonstrate optimal state estimation for a cavity optomechanical system through Kalman filtering. By taking into account nontrivial experimental noise sources, such as colored laser noise and spurious mechanical modes, we implement a realistic state-space model. This allows us to obtain the conditional system state, i.e., conditioned on previous measurements, with a minimal least-squares estimation error. We apply this method to estimate the mechanical state, as well as optomechanical correlations both in the weak and strong coupling regime. The application of the Kalman filter is an important next step for achieving real-time optimal (classical and quantum) control of cavity optomechanical systems.

Organisation(en)
Quantenoptik, Quantennanophysik und Quanteninformation
Externe Organisation(en)
Gottfried Wilhelm Leibniz Universität Hannover
Journal
Physical Review Letters
Band
114
Anzahl der Seiten
6
ISSN
0031-9007
DOI
https://doi.org/10.1103/PhysRevLett.114.223601
Publikationsdatum
06-2015
Peer-reviewed
Ja
ÖFOS 2012
103026 Quantenoptik
Schlagwörter
ASJC Scopus Sachgebiete
Allgemeine Physik und Astronomie
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/54282c03-f68a-4cdd-8552-27ff667b65cd