Smoothing of Gaussian quantum dynamics for force detection

Smoothing of Gaussian quantum dynamics for force detection

Building on recent work by Gammelmark et al. we develop a formalism for prediction and retrodiction of Gaussian quantum systems undergoing continuous measurements. We apply the resulting formalism to study the advantage of incorporating a full measurement record and retrodiction for impulselike forc...

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Veröffentlicht in:Physical review. A 2018-04, Vol.97 (4), Article 042106
Hauptverfasser: Huang, Zhishen, Sarovar, Mohan
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MATHEMATICS AND COMPUTING
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container_title Physical review. A
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creator Huang, Zhishen
Sarovar, Mohan
description Building on recent work by Gammelmark et al. we develop a formalism for prediction and retrodiction of Gaussian quantum systems undergoing continuous measurements. We apply the resulting formalism to study the advantage of incorporating a full measurement record and retrodiction for impulselike force detection and accelerometry. Here, we find that using retrodiction can only increase accuracy in a limited parameter regime, but that the reduction in estimation noise that it yields results in better detection of impulselike forces.
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title Smoothing of Gaussian quantum dynamics for force detection
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