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Supplementary material for "Visualization of correlations in hybrid quantum systems"

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posted on 14.11.2019 by Russell Rundle
Supplementary material for Visualization of correlations in hybrid quantum systems available at: https://arxiv.org/abs/1809.10564

Abstract:

In this work we construct Wigner functions for hybrid continuous and discrete variable quantum systems. We demonstrate new capabilities in the visualization of the interactions and correlations within hybrid quantum systems. Specifically, we show how to clearly distinguish signatures that arise due to quantum and classical correlations in an entangled Bell-cat state. We further show how correlations are manifested in different types of interaction, leading to a deeper understanding of how quantum information is shared between two subsystems. Understanding the nature of the correlations between systems is central to harnessing quantum effects for information processing; the methods presented here reveal the nature of these correlations, allowing a clear visualization of the quantum information present in hybrid quantum systems. The methods presented here could be viewed as a form of quantum state spectroscopy.

Funding

DTP 2016-2017 Loughborough University

Engineering and Physical Sciences Research Council

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  • Mechanical, Electrical and Manufacturing Engineering

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