文章基本信息

标题：Suppressing measurement uncertainty in an inhomogeneous spin star system
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作者：Saeed Haddadi ; Mehrdad Ghominejad ; Ahmad Akhound 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2021
卷号：11
DOI：10.1038/s41598-021-02045-0
语种：English
出版社：Springer Nature
摘要：The uncertainty principle is known as a foundational element of quantum theory, providing a striking lower bound to quantify our prediction for the measured result of two incompatible observables. In this work, we study the thermal evolution of the entropic uncertainty bound in the presence of quantum memory for an inhomogeneous four-qubit spin-star system that is in the thermal regime. Intriguingly, our results show that the entropic uncertainty bound can be controlled and suppressed by adjusting the inhomogeneity parameter of the system.