Protecting quantum Fisher information of N-qubit GHZ state by weak measurement with flips against dissipation

Protecting quantum Fisher information of N-qubit GHZ state by weak measurement with flips against dissipation

Abstract In this paper we propose a scheme by using weak-measurement-based pre- and post-flips (WMPPF) to protect the average quantum Fisher information (QFI) in the independent amplitude-damping channel (ADC) for N-qubit GHZ state and generalized N-qubit GHZ states. We also discuss the weak measure...

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Detalles Bibliográficos
Autores principales: Yu Chen, Jian Zou, Zheng-wen Long, Bin Shao
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
Materias:
Medicine
R
Science
Q
Acceso en línea:https://doaj.org/article/2d5d1fbb397546a281db7dd4cc4f588c
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