Dual-path methods for propagating quantum microwaves

We study quantum state tomography, entanglement detection and channel noise reconstruction of propagating quantum microwaves via dual-path methods. The presented schemes make use of the following key elements: propagation channels, beam splitters, linear amplifiers and field quadrature detectors. Re...

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Main Authors: R Di Candia, E P Menzel, L Zhong, F Deppe, A Marx, R Gross, E Solano
Format: Article
Language:English
Published: IOP Publishing 2014-01-01
Series:New Journal of Physics
Online Access:https://doi.org/10.1088/1367-2630/16/1/015001
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author R Di Candia
E P Menzel
L Zhong
F Deppe
A Marx
R Gross
E Solano
author_facet R Di Candia
E P Menzel
L Zhong
F Deppe
A Marx
R Gross
E Solano
author_sort R Di Candia
collection DOAJ
description We study quantum state tomography, entanglement detection and channel noise reconstruction of propagating quantum microwaves via dual-path methods. The presented schemes make use of the following key elements: propagation channels, beam splitters, linear amplifiers and field quadrature detectors. Remarkably, our methods are tolerant to the ubiquitous noise added to the signals by phase-insensitive microwave amplifiers. Furthermore, we analyse our techniques with numerical examples and experimental data, and compare them with the scheme developed in Eichler et al (2011 Phys. Rev. Lett. 106 220503; 2011 Phys. Rev. Lett. 107 113601), based on a single path. Our methods provide key toolbox components that may pave the way towards quantum microwave teleportation and communication protocols.
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spelling doaj.art-1a0485cde5a248189e5be003ddcd56032023-08-08T11:20:52ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116101500110.1088/1367-2630/16/1/015001Dual-path methods for propagating quantum microwavesR Di Candia0E P Menzel1L Zhong2F Deppe3A Marx4R Gross5E Solano6Department of Physical Chemistry, University of the Basque Country UPV/EHU , Apartado 644, E-48080 Bilbao, SpainWalther-Meißner-Institut , Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany; Physik-Department, Technische Universität München , D-85748 Garching, GermanyWalther-Meißner-Institut , Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany; Physik-Department, Technische Universität München , D-85748 Garching, GermanyWalther-Meißner-Institut , Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany; Physik-Department, Technische Universität München , D-85748 Garching, GermanyWalther-Meißner-Institut , Bayerische Akademie der Wissenschaften, D-85748 Garching, GermanyWalther-Meißner-Institut , Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany; Physik-Department, Technische Universität München , D-85748 Garching, GermanyDepartment of Physical Chemistry, University of the Basque Country UPV/EHU , Apartado 644, E-48080 Bilbao, Spain; IKERBASQUE, Basque Foundation for Science, Alameda Urquijo 36, E-48011 Bilbao, SpainWe study quantum state tomography, entanglement detection and channel noise reconstruction of propagating quantum microwaves via dual-path methods. The presented schemes make use of the following key elements: propagation channels, beam splitters, linear amplifiers and field quadrature detectors. Remarkably, our methods are tolerant to the ubiquitous noise added to the signals by phase-insensitive microwave amplifiers. Furthermore, we analyse our techniques with numerical examples and experimental data, and compare them with the scheme developed in Eichler et al (2011 Phys. Rev. Lett. 106 220503; 2011 Phys. Rev. Lett. 107 113601), based on a single path. Our methods provide key toolbox components that may pave the way towards quantum microwave teleportation and communication protocols.https://doi.org/10.1088/1367-2630/16/1/015001
spellingShingle R Di Candia
E P Menzel
L Zhong
F Deppe
A Marx
R Gross
E Solano
Dual-path methods for propagating quantum microwaves
New Journal of Physics
title Dual-path methods for propagating quantum microwaves
title_full Dual-path methods for propagating quantum microwaves
title_fullStr Dual-path methods for propagating quantum microwaves
title_full_unstemmed Dual-path methods for propagating quantum microwaves
title_short Dual-path methods for propagating quantum microwaves
title_sort dual path methods for propagating quantum microwaves
url https://doi.org/10.1088/1367-2630/16/1/015001
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AT amarx dualpathmethodsforpropagatingquantummicrowaves
AT rgross dualpathmethodsforpropagatingquantummicrowaves
AT esolano dualpathmethodsforpropagatingquantummicrowaves