Characterizing entanglement robustness of an N-qubit W superposition state against particle loss from quantum Fisher information

We investigate the entanglement robustness of an N-qubit W superposition state against particle loss with quantum Fisher information. In the noninteracting environment, the quantum Fisher information of reduced W superposition state is found same as it from W superposition state when the number of q...

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Bibliographic Details
Main Authors: Zhihong Ren, Yan Li
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Results in Physics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379723007477