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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.

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

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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