Jumps of optimal measurement angle and fractures on the curves of quantum correlation functions

M. A. Yurischev

doi:10.1117/12.2521281

15 March 2019 Jumps of optimal measurement angle and fractures on the curves of quantum correlation functions

M. A. Yurischev

Proceedings Volume 11022, International Conference on Micro- and Nano-Electronics 2018; 110222I (2019) https://doi.org/10.1117/12.2521281
Event: The International Conference on Micro- and Nano-Electronics 2018, 2018, Zvenigorod, Russian Federation

Abstract

The one-way quantum work deficit, a measure of quantum correlation, exhibits the regions with the bimodal behavior of post-measurement entropy versus the measurement angle θ ε (0, π/2). Under certain conditions this can lead to the finite jumps Δν> 0 of optimal measurement angle ν from the endpoint 0 or π/2 to the interior minimum and vice versa. In turn, such sudden jumps lead to the fractures, i.e., non-analytical points on the dependencies of quantum correlation upon the state parameters. We examine a possibility to experimentally observe these phenomena on an example of three-component mixture consisting of one pair of Bell-diagonal states and a basis state orthogonal to the Bell ones. Observation of named effects, beyond their intrinsic interest, could demonstrate the experimental ability in controlling and manipulating the quantum states.

Citation Download Citation

M. A. Yurischev "Jumps of optimal measurement angle and fractures on the curves of quantum correlation functions", Proc. SPIE 11022, International Conference on Micro- and Nano-Electronics 2018, 110222I (15 March 2019); https://doi.org/10.1117/12.2521281

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