Effects of prepared states and Unruh temperature on Measurement-Induced-Nonlocality

Details Effects of prepared states and Unruh temperature on Measurement-Induced-Nonlocality Effects of prepared states and Unruh temperature on Measurement-Induced-Nonlocality

2012-04-11

arxiv.org/abs/1204.2326v1

Physics

Quantum Physics

15 pages, 9 figures

Scientific paper

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 $\mathrm{A}$ and $\mathrm{I}$ decreases but the MIN between modes $\mathrm{A}$ and $\mathrm{II}$ increases. We prove that the parameters $c_i$ 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 $\mathrm{A}$ and $\mathrm{I}$, 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.

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