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QUSON SIGNED

Quantum Sensing with Quantum Optical Networks

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 QUSON project word cloud

Explore the words cloud of the QUSON project. It provides you a very rough idea of what is the project "QUSON" about.

proposals    ultra    systematically    setups    describe    decay    corresponding    dynamics    properly    points    coupled    sensing    arises    leads    quantum    performance    mean    platforms    network    sensors    qubit    magnetic    free    trapped    numerical    never    metrological    accurate    lasers    accurately    resonators    cavity    radiative    phonons    phenomena    protocols    approximations    forces    decade    last    theory    preliminary    qubits    equilibrium    correlations    multistability    matrix    goals    external    body    entanglement    limit    induce    quasi    firstly    cavities    scenarios    secondly    microwave    technique    circuits    photons    photonic    regimes    rigorous    abrupt    dissipative    limits    close    noise    cooperative    realistic    generation    exact    transitions    ion    description    interactions    superconducting    sensitivity    weak    networks    coupling    emergent    driving    dissipation    exploits    theoretical    experimental    reference    question   

Project "QUSON" data sheet

The following table provides information about the project.

Coordinator
THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD 

Organization address
address: WELLINGTON SQUARE UNIVERSITY OFFICES
city: OXFORD
postcode: OX1 2JD
website: www.ox.ac.uk

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Total cost 183˙454 €
 EC max contribution 183˙454 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2018
 Duration (year-month-day) from 2018-06-04   to  2020-06-03

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD UK (OXFORD) coordinator 183˙454.00
2    THE UNIVERSITY OF SUSSEX UK (BRIGHTON) participant 0.00

Map

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 Project objective

Quantum sensing exploits effects such as entanglement to enhance the sensitivity of measurement devices. In the last decade we have witnessed a significant advance in experimental platforms such as trapped ion setups and superconducting circuits. These systems are never free from noise and dissipation, however, interactions between qubits and photons or phonons can be controlled with lasers or external fields. Even in strong dissipative regimes, cooperative effects may induce complex quantum dynamics with emergent phenomena such as non-equilibrium phase transitions and multistability. The question then arises whether we can exploit those many-body effects in robust metrological protocols. My project will address this question in two main scenarios corresponding to different limits of a network of qubits coupled to photonic cavities. Firstly, I will consider a limit of weak coupling, in which cooperative radiative decay leads to the generation of entanglement. Secondly, I will investigate networks of qubits strongly coupled to photonic cavities. I will identify, and systematically investigate, points close to non-equilibrium phase transitions in which the abrupt response of the system can be used to accurately measure properties of driving fields. The project requires a rigorous theoretical description of the qubit-cavity network. Approximations such as a mean-field theory can be used for a preliminary study. However, to achieve my goals I will need to properly describe quantum correlations across the system. I will address this challenge by using Matrix Product States methods - an advanced quasi-exact numerical technique. My reference systems will be trapped ion setups and superconducting qubits coupled to microwave resonators. In my project, I will systematically investigate their performance as quantum sensors under realistic conditions. My work will lead to proposals for the accurate measurement of microwave fields, magnetic fields and ultra-weak forces.

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The information about "QUSON" are provided by the European Opendata Portal: CORDIS opendata.

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