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Molecular Quantum Opto-Spintronics

Total Cost €


EC-Contrib. €






Project "MoQuOS" data sheet

The following table provides information about the project.


Organization address
postcode: 76131

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 Germany [DE]
 Total cost 2˙335˙416 €
 EC max contribution 2˙335˙416 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-ADG
 Funding Scheme ERC-ADG
 Starting year 2017
 Duration (year-month-day) from 2017-07-01   to  2022-06-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The field of quantum materials has developed into an active playground for testing novel ideas and protocols for future devices governed by the principles of quantum mechanics. Quantum technologies might result in revolutionary improvements in terms of capacity, sensitivity, and speed, and will be the decisive factor for success in many industries and markets ( Molecular magnets, realized by tailored molecules hosting magnetic ions, offer the possibility to obtain a few-spin object, necessary in order to perform basic quantum operations. The first molecular devices have enabled the read-out and manipulation of the spin states. Single-shot read-out times of one second have been achieved for a nuclear spin, which is, however, too slow for applications. Here, we will remove this bottleneck by developing reliable, fast, and scalable optical methods for the read-out of both electron and nuclear spin states allowing us to perform basic quantum-information processing protocols. The scientific approach is to use high-quality quantum emitters (NV-centers in diamond, ligand quantum emitters, 2D materials, or other optically active ions) to optically read-out efficiently the spin states of the magnetic molecules. Special care will be taken to minimize back action from the read-out emitter on the spin system and thereby preserving the quantum states. Various optical techniques (surface enhanced fluorescence, surface enhanced Raman scattering, and optical fiber scanning cavities) will be used to enhance the light-matter interaction to obtain a reliable and fast optical read-out. Due to of the possibilities of scanning the probing laser and using different fluorescence energies, the optical read-out is scalable to larger systems and 2D networks of molecules. The project deals with the fundamental science of optical manipulation and characterization of molecular qubits and will advance the field of quantum optics and quantum electronics of single-spin systems.


year authors and title journal last update
List of publications.
2018 Eufemio Moreno-Pineda, Svetlana Klyatskaya, Ping Du, Marko Damjanović, Gheorghe Taran, Wolfgang Wernsdorfer, Mario Ruben
Observation of Cooperative Electronic Quantum Tunneling: Increasing Accessible Nuclear States in a Molecular Qudit
published pages: 9873-9879, ISSN: 0020-1669, DOI: 10.1021/acs.inorgchem.8b00823
Inorganic Chemistry 57/16 2020-02-19
2019 Lukas Grünhaupt, Martin Spiecker, Daria Gusenkova, Nataliya Maleeva, Sebastian T. Skacel, Ivan Takmakov, Francesco Valenti, Patrick Winkel, Hannes Rotzinger, Wolfgang Wernsdorfer, Alexey V. Ustinov, Ioan M. Pop
Granular aluminium as a superconducting material for high-impedance quantum circuits
published pages: 816-819, ISSN: 1476-1122, DOI: 10.1038/s41563-019-0350-3
Nature Materials 18/8 2020-02-19
2019 Eufemio Moreno-Pineda, Gheorghe Taran, Wolfgang Wernsdorfer, Mario Ruben
Quantum tunnelling of the magnetisation in single-molecule magnet isotopologue dimers
published pages: 5138-5145, ISSN: 2041-6520, DOI: 10.1039/c9sc01062a
Chemical Science 10/19 2020-02-19
2019 Gheorghe Taran, Edgar Bonet, Wolfgang Wernsdorfer
The role of the quadrupolar interaction in the tunneling dynamics of lanthanide molecular magnets
published pages: 142903, ISSN: 0021-8979, DOI: 10.1063/1.5079453
Journal of Applied Physics 125/14 2020-02-19
2019 Gheorghe Taran, Edgar Bonet, Wolfgang Wernsdorfer
Decoherence measurements in crystals of molecular magnets
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.99.180408
Physical Review B 99/18 2020-02-19
2018 Clément Godfrin, Rafik Ballou, Edgar Bonet, Mario Ruben, Svetlana Klyatskaya, Wolfgang Wernsdorfer, Franck Balestro
Generalized Ramsey interferometry explored with a single nuclear spin qudit
published pages: , ISSN: 2056-6387, DOI: 10.1038/s41534-018-0101-3
npj Quantum Information 4/1 2019-04-18

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