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Atomic-scale Design of Majorana states and their Innovative Real-space Exploration

Total Cost €


EC-Contrib. €






 ADMIRE project word cloud

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

ev    contrast    statistics    modern    fabricated    network    anyons    sts    demonstrating    single    shiba    individual    assembly    quasiparticles    length    self    atomically    ultra    composition    superconductors    wave    constructed    abelian    orbit    sophisticated    structures    dimensional    microscope    micro    physics    polarization    impurity    textures    coupling    hybridization    scanning    emergence    artificially    braiding    zero    basis    bound    atomic    josephson    operation    probe    vacuum    realize    space    chains    superconducting    magnetic    elemental    exchange    condensed    techniques    spectroscopy    emergent    construct    model    resolution    directions    nature    nanowires    topological    semiconducting    spin    bands    chain    experimentally    spatial    fault    collinear    experimental    function    stm    ends    tolerant    rings    precision    computation    precise    majorana    realized    resolved    attempts    wires    ferromagnetic    tunnelling    quantum    exotic    atom    proximity    structure    manipulation    substrates    energy    platforms    junctions   

Project "ADMIRE" data sheet

The following table provides information about the project.


Organization address
address: MITTELWEG 177
postcode: 20148
website: n.a.

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˙499˙750 €
 EC max contribution 2˙499˙750 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-ADG
 Funding Scheme ERC-ADG
 Starting year 2019
 Duration (year-month-day) from 2019-01-01   to  2023-12-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAET HAMBURG DE (HAMBURG) coordinator 2˙499˙750.00


 Project objective

Fault-tolerant topological quantum computation has become one of the most exciting research directions in modern condensed matter physics. As a key operation the braiding of non-Abelian anyons has been proposed theoretically. Such exotic quasiparticles can be realized as zero-energy Majorana bound states at the ends of one-dimensional magnetic nanowires in proximity to s-wave superconductors in the presence of high spin-orbit coupling. In contrast to previous attempts to realize such systems experimentally, based on the growth of semiconducting nanowires or the self-assembly of ferromagnetic nanowires on s-wave superconductors, we propose to design Majorana bound states in artificially constructed single-atom chains with non-collinear spin-textures on elemental superconducting substrates using scanning tunnelling microscope (STM)-based atom manipulation techniques. We would like to study at the atomic level the formation of Shiba bands as a result of hybridization of individual Shiba impurity states as well as the emergence of zero-energy Majorana bound states as a function of chain structure, length, and composition. Moreover, we will construct model-type platforms, such as T-junctions, rings, and more complex network structures with atomic-scale precision as a basis for demonstrating the manipulation and braiding of Majorana bound states. We will make use of sophisticated experimental techniques, such as spin-resolved scanning tunnelling spectroscopy (STS) at micro-eV energy resolution, scanning Josephson tunnelling spectroscopy, and multi-probe STS under well-defined ultra-high vacuum conditions, in order to directly probe the nature of the magnetic state of the atomic wires, the spin-polarization of the emergent Majorana states, as well as the spatial nature of the superconducting order parameter in real space. Finally, we will try to directly probe the quantum exchange statistics of non-Abelian anyons in these atomically precise fabricated model-type systems.

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The information about "ADMIRE" are provided by the European Opendata Portal: CORDIS opendata.

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