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arXiv

Visualization of correlations in hybrid quantum systems

作     者:Rundle, R.P. Davies, B.I. Dwyer, V.M. Tilma, Todd Everitt, M.J. 

作者机构:Quantum Systems Engineering Research Group Department of Physics Loughborough University LeicestershireLE11 3TU United Kingdom Wolfson School Loughborough University Department of Physics College of Science Tokyo Institute of Technology H-63 2-12-1 Ōokayama Meguro-ku Tokyo152-8550 Japan Quantum Computing Unit Institute of Innovative Research Tokyo Institute of Technology S1-16 4259 Nagatsuta-cho Midori-ku Yokohama226-8503 Japan 

出 版 物:《arXiv》 (arXiv)

年 卷 期:2018年

核心收录:

主  题:Quantum optics 

摘      要: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. Copyright © 2018, The Authors. All rights reserved.

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