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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.

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

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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