Bayesian estimation for Bell state rotations
| العنوان: | Bayesian estimation for Bell state rotations |
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| المؤلفون: | Luke Anastassiou, Jason F. Ralph, Simon Maskell, Pieter Kok |
| المصدر: | AVS Quantum Science. 5 |
| بيانات النشر: | American Vacuum Society, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Quantum Physics, Computational Theory and Mathematics, Computer Networks and Communications, FOS: Physical sciences, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, Quantum Physics (quant-ph), Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials |
| الوصف: | This paper explores the effect of three-dimensional rotations on two-qubit Bell states and proposes a Bayesian method for the estimation of the parameters of the rotation. We use a particle filter to estimate the parameters of the rotation from a sequence of Bell state measurements and we demonstrate that the resultant improvement over the optimal single qubit case approaches the $\sqrt{2}$ factor that is consistent with the Heisenberg limit. We also demonstrate how the accuracy of the estimation method is a function of the purity of mixed states. 9 pages, 5 figures |
| تدمد: | 2639-0213 |
| DOI: | 10.1116/5.0147878 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c83921e4e9d06d5406ca7f4ccfe82b9 https://doi.org/10.1116/5.0147878 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....2c83921e4e9d06d5406ca7f4ccfe82b9 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 26390213 |
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| DOI: | 10.1116/5.0147878 |