Enhancing parameter estimation precision by non-Hermitian operator process

DOI10.1007/s11128-017-1756-yzbMath1383.81023OpenAlexW2765524884MaRDI QIDQ1698806

Jiang Hang, Mao-Fa Fang, Guo-You Wang, You-Neng Guo, Zeng, Ke

Publication date: 16 February 2018

Published in: Quantum Information Processing (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s11128-017-1756-y

zbMATH Keywords

parameter estimationquantum Fisher informationnon-Hermitian

Mathematics Subject Classification ID

Quantum measurement theory, state operations, state preparations (81P15) Quantum coherence, entanglement, quantum correlations (81P40) Nonselfadjoint operator theory in quantum theory including creation and destruction operators (81Q12)

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Quantum Fisher information of a two-level system controlled by non-Hermitian operation under depolarization ⋮ Enhancing and protecting quantum correlations of a two-qubit entangled system via non-Hermitian operation

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