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Hilbert–Schmidt speed as an efficient figure of merit for quantum estimation of phase encoded into the initial state of open n-qubit systems

Hilbert–Schmidt speed (HSS) is a special type of quantum statistical speed which is easily computable, since it does not require diagonalization of the system state. We find that, when both HSS and quantum Fisher information (QFI) are calculated with respect to the phase parameter encoded into the i...

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Detalles Bibliográficos
Autores principales: Rangani Jahromi, Hossein, Lo Franco, Rosario
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8007828/
https://www.ncbi.nlm.nih.gov/pubmed/33782438
http://dx.doi.org/10.1038/s41598-021-86461-2

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