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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.

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

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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