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Title: | Optimal estimation of the optomechanical coupling strength |
Authors: | Zsolt Bernád, József Sanavio, Claudio Xuereb, Andre |
Keywords: | Optomechanics Quantum theory Photon correlation |
Issue Date: | 2018 |
Publisher: | American Physical Society |
Citation: | Bernád, J. Z., Sanavio, C., & Xuereb, A. (2018). Optimal estimation of the optomechanical coupling strength. Physical Review A, 97(6), 063821. |
Abstract: | We apply the formalism of quantum estimation theory to obtain information about the value of the nonlinear optomechanical coupling strength. In particular, we discuss the minimum mean-square error estimator and a quantum Cramér–Rao-type inequality for the estimation of the coupling strength. Our estimation strategy reveals some cases where quantum statistical inference is inconclusive and merely results in the reinforcement of prior expectations. We show that these situations also involve the highest expected information losses. We demonstrate that interaction times on the order of one time period of mechanical oscillations are the most suitable for our estimation scenario, and compare situations involving different photon and phonon excitations. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/95868 |
Appears in Collections: | Scholarly Works - FacSciPhy |
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Optimal_estimation_of_the_optomechanical_coupling_strength(2018).pdf Restricted Access | 1.26 MB | Adobe PDF | View/Open Request a copy |
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