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Uncertainty Relation Based on Wigner–Yanase–Dyson Skew Information with Quantum Memory

We present uncertainty relations based on Wigner–Yanase–Dyson skew information with quantum memory. Uncertainty inequalities both in product and summation forms are derived. It is shown that the lower bounds contain two terms: one characterizes the degree of compatibility of two measurements, and th...

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Detalles Bibliográficos
Autores principales: Li, Jun, Fei, Shao-Ming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7512626/
https://www.ncbi.nlm.nih.gov/pubmed/33265223
http://dx.doi.org/10.3390/e20020132
Descripción
Sumario:We present uncertainty relations based on Wigner–Yanase–Dyson skew information with quantum memory. Uncertainty inequalities both in product and summation forms are derived. It is shown that the lower bounds contain two terms: one characterizes the degree of compatibility of two measurements, and the other is the quantum correlation between the measured system and the quantum memory. Detailed examples are given for product, separable and entangled states.