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MaGnum SIGNED

Majorana bound states in Ge/SiGe heterostructures

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 MaGnum project word cloud

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

spin    tunable    hybrid    mobile    geometry    happens    magneto    detection    group    environment    excitations    nanowires    ettore    coupling    ingredients    measuring    planar    question    heterostructure    superconductor    contacts    transport    inas    proper    step    fundamental    advantage    wire    correlation    protected    activites    suggests    look    annihilate    computation    germanium    existence    ge    spatial    insb    bits    barriers    possibility    additionally    antiparticle    topological    larger    anticipated    interaction    induce    particle    hole    follow    accessible    silicon    put    majorana    separation    ing    vicinity    nbtin    isella    collaborate    each    concentrated    predicted    orbit    brings    elusive    semiconductor    form    bound    theory    tunneling    dimensional    material    sige    transition    disappear    topologically    quantum    conductance    mean    gas    superconducting    arises    helical    confine    mbs    holes    close    free    quasiparticle    couple   

Project "MaGnum" data sheet

The following table provides information about the project.

Coordinator
INSTITUTE OF SCIENCE AND TECHNOLOGY AUSTRIA 

Organization address
address: Am Campus 1
city: KLOSTERNEUBURG
postcode: 3400
website: www.ist.ac.at

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 Austria [AT]
 Total cost 174˙167 €
 EC max contribution 174˙167 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2018
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2019
 Duration (year-month-day) from 2019-04-01   to  2021-03-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    INSTITUTE OF SCIENCE AND TECHNOLOGY AUSTRIA AT (KLOSTERNEUBURG) coordinator 174˙167.00

Map

 Project objective

Each particle has its antiparticle, and upon bringing them in close vicinity, they annihilate (they disappear). A fundamental question arises: what happens if a particle is its own antiparticle? Ettore Majorana predicted their existence and evidence has been put forward for the existence of such a state of matter in the form of quasiparticle excitations in hybrid semiconductor-superconductor devices. Research activites so far has concentrated on InAs nanowires, planar InAs and InSb nanowires. Theory suggests to look for Majorana bound states (MBS) in Germanium and I propose to use a novel yet promising material system, namely a Germanium/Silicon-Germanium heterostructure, to provide evidence for the topological state of matter leading to Majorana bound states (MBS). Using Ge/SiGe brings the advantage of a long mean free path, which will allow for a larger spatial separation of the MBS and facilitate the long anticipated but yet elusive detection of correlation of two MBS. Additionally, the planar geometry brings the possibility to couple the MBS to their environment, which will be important for their usage as topologically protected quantum bits for quantum computation. I propose to show step-by-step the ingredients necessary for a topological phase transition resulting in MBS. In particular, I will follow these steps: I will collaborate with G. Isella's group to develop a highly mobile two-dimensional hole gas and make it accessible for magneto-transport measurements. I will further confine the holes into a one-dimensional wire with tunable tunneling barriers at each end. I will test the presence of a strong spin-orbit interaction by measuring helical transport. I will induce superconducting order by coupling the wire to NbTiN contacts. Finally, I will test the presence of MBS with tunneling conductance measurements and use a proper geometry to show evidence of the correlation of two MBS at each end of the wire.

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

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