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arXiv:1209.1884 · مجلة جامعة عمران

Measurement-Induced Nonlocality in an n-Partite Quantum State

Ali Saif M. Hassan, Pramod S. Joag

Published Jun 1, 2021• 1 citation
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Abstract

We generalize the concept of measurement-induced non-locality (MIN) to an n-partite quantum state. We get exact analytical expressions for MIN in an n-partite pure and n-qubit mixed state. We obtain the conditions under which MiN equals geometric quantum discord in an n-partite pure state and an n-qubit mixed state.
DOI
10.59145/jaust.v1i1.19

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How the prepared states and Unruh effect affect Measurement-Induced-Nonlocality (MIN) is studied. We show that, as the Unruh temperature increases, the MIN between modes A\mathrm{A}A and I\mathrm{I}I decreases but the MIN between modes A\mathrm{A}A and II\mathrm{II}II increases. We prove that the parameters cic_ici​ which decide initial prepared states affect not only the values of the MIN, but also the dynamical behavior of it. By comparing the MIN with the maximal expectation values of CHSH inequality and geometric discord between modes A\mathrm{A}A and I\mathrm{I}I, we also find that the MIN is more general than the quantum nonlocality related to violation of Bell's inequalities, and its values is always equal or bigger than that of the geometric discord.