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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.

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

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

 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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