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Transforming the limits of resolution by utilizing quantum information

Total Cost €


EC-Contrib. €






 QRES project word cloud

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

color    survive    issue    combined    relation    possibility    time    electric    science    sensors    static    vacancy    realized    ion    signals    t1    computing    subject    exploited    sensitivity    variety    tolerant    appreciation    operations    spin    thanks    physical    governing    protocols    sensing    pressure    qubits    levels    broad    correction    imaging    metrology    coherence    accuracy    experiments    experimental    surpass    platforms    types    precise    limit    qs    resource    spectrum    shown    centre    resolution    ions    definite    besides    realization    centers    proposals    correlations    overcome    laws    final    flux    magnetic    groups    realize    keeping    fault    decay    quantum    individual    purpose    quantities    vast    gained    temperature    logic    nanoscale    feasible    dependent    limits    trapped    theory    diamond    positioned    nitrogen    central    quantity    ultimate    insights    error    extraordinary    until    resolve    frequencies    opens   

Project "QRES" data sheet

The following table provides information about the project.


Organization address
postcode: 91904

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 Israel [IL]
 Total cost 1˙820˙475 €
 EC max contribution 1˙820˙475 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-COG
 Funding Scheme ERC-COG
 Starting year 2018
 Duration (year-month-day) from 2018-04-01   to  2023-03-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Quantum sensing(QS) and metrology exploit physical laws governing individual quantum systems, and correlations between systems, to measure a physical quantity. Recently, an appreciation of the vast potential for a variety of applications, including magnetic and electric fields, pressure and temperature sensors, and imaging at the nanoscale, has positioned QS at the centre of quantum science and technology. QS is a rapidly growing field, with the most common platforms being spin qubits, trapped ions and flux qubits. The main resource for quantum sensing is coherence, the definite phase relation between different states. This phase can only survive until the coherence time, which limits the sensitivity of quantum sensing. For quantum sensing the decay time T1 is believed to be the ultimate limit.

QS targets a broad spectrum of physical quantities, of both static and time-dependent types. While the most important characteristic for static quantities is sensitivity, for time-dependent signals it is the resolution, i.e. the ability to resolve two different frequencies. This is the central subject of the proposed research.

Quantum computing has been shown to be feasible thanks to the realization that error correction can be applied to quantum operations in a fault-tolerant way. This opens up the possibility to realize quantum operations at very precise levels of accuracy and resolution.

In my planned research I will address the issue of whether this extraordinary accuracy, when combined with robust time keeping methods, can be exploited to enhance quantum sensing in general - and resolution in particular. For this purpose, I will design protocols that far surpass the state-of-the-art, with the final goal being to overcome the T1 limit. Besides the insights gained for quantum theory, the research will result in detailed proposals for experiments to be realized by experimental groups investigating Nitrogen-Vacancy color centers in diamond and trapped-ion quantum logic.


year authors and title journal last update
List of publications.
2020 Daniel Cohen, Ramil Nigmatullin, Oded Kenneth, Fedor Jelezko, Maxim Khodas, Alex Retzker
Utilising NV based quantum sensing for velocimetry at the nanoscale
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-020-61095-y
Scientific Reports 10/1 2020-04-24
2019 Genko T Genov, Nati Aharon, Fedor Jelezko, Alex Retzker
Mixed dynamical decoupling
published pages: 35010, ISSN: 2058-9565, DOI: 10.1088/2058-9565/ab2afd
Quantum Science and Technology 4/3 2020-04-24
2019 Nati Aharon, Amit Rotem, Liam P. McGuinness, Fedor Jelezko, Alex Retzker, Zohar Ringel
NV center based nano-NMR enhanced by deep learning
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-019-54119-9
Scientific Reports 9/1 2020-04-24
2020 Q.-Y. Cao, P.-C. Yang, M.-S. Gong, M. Yu, A. Retzker, M.B. Plenio, C. Müller, N. Tomek, B. Naydenov, L.P. McGuinness, F. Jelezko, J.-M. Cai
Protecting Quantum Spin Coherence of Nanodiamonds in Living Cells
published pages: , ISSN: 2331-7019, DOI: 10.1103/physrevapplied.13.024021
Physical Review Applied 13/2 2020-04-24
2019 Amit Rotem, Tuvia Gefen, Santiago Oviedo-Casado, Javier Prior, Simon Schmitt, Yoram Burak, Liam McGuiness, Fedor Jelezko, Alex Retzker
Limits on Spectral Resolution Measurements by Quantum Probes
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.122.060503
Physical Review Letters 122/6 2020-04-24
2019 Nati Aharon, Nicolas Spethmann, Ian D Leroux, Piet O Schmidt, Alex Retzker
Robust optical clock transitions in trapped ions using dynamical decoupling
published pages: 83040, ISSN: 1367-2630, DOI: 10.1088/1367-2630/ab3871
New Journal of Physics 21/8 2020-04-24
2019 Nati Aharon, Ilai Schwartz, Alex Retzker
Quantum Control and Sensing of Nuclear Spins by Electron Spins under Power Limitations
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.122.120403
Physical Review Letters 122/12 2020-04-24
2019 T. Gefen, A. Rotem, A. Retzker
Overcoming resolution limits with quantum sensing
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-019-12817-y
Nature Communications 10/1 2020-02-28
2019 D. Cohen,1, ∗ T. Gefen,1 L. Ortiz,1 and A. Retzker1
Achieving the ultimate precision limit in quantum NMR spectroscopy
published pages: , ISSN: , DOI:

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