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Trapped Ion Quantum Computing
Bounds on Quantum Multiple-Parameter Estimation with Gaussian State
arXiv
Authors: Yang Gao, Hwang Lee
Year
2014
Paper ID
48388
Status
Preprint
Abstract Read
~2 min
Abstract Words
76
Citations
N/A
Abstract
We investigate the quantum Cramer-Rao bounds on the joint multiple-parameter estimation with the Gaussian state as a probe. We derive the explicit right logarithmic derivative and symmetric logarithmic derivative operators in such a situation. We compute the corresponding quantum Fisher information matrices, and find that they can be fully expressed in terms of the mean displacement and covariance matrix of the Gaussian state. Finally, we give some examples to show the utility of our analytical results.
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- This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
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- We investigate the quantum Cramer-Rao bounds on the joint multiple-parameter estimation with the Gaussian state as a probe.
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