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Topo2DEG SIGNED

Topological states in superconducting two-dimensional electron gases

Total Cost €

0

EC-Contrib. €

0

Partnership

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 Topo2DEG project word cloud

Explore the words cloud of the Topo2DEG project. It provides you a very rough idea of what is the project "Topo2DEG" about.

physics    gap    jjs    experimentally    hybrid    superconductors    denominator    external    geometry    supervise    superconducting    advantageous    planar    nanowires    scales    manipulate    correction    josephson    quantum    electrodes    possibility    lattice    fundamental    uncharted    majorana    create    team    critical    zeeman    gases    advantage    individual    employ    tests    vanishing    matched    topological    zero    amenable    differently    electron    peaks    date    spatial    orbit    pave    terminal    bias    constitute    local    ing    full    small    interacting    pairs    difference    possibly    mostly    superconductor    situ    emphasis    requirement    magnetic    interaction    spin    experiments    explored    splitting    geometries    coupled    energy    physical    computing    regime    networks    2degs    branched    disorder    junctions    dimensional    semiconductor    modes    last    territories    designs    grown    nanowire    realizing    wires    phenomena    tuning    conventional    readily    fermi    mainly   

Project "Topo2DEG" data sheet

The following table provides information about the project.

Coordinator
IBM RESEARCH GMBH 

Organization address
address: SAEUMERSTRASSE 4
city: RUESCHLIKON
postcode: 8803
website: www.zurich.ibm.com

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 Switzerland [CH]
 Total cost 1˙999˙916 €
 EC max contribution 1˙999˙916 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2018-STG
 Funding Scheme ERC-STG
 Starting year 2019
 Duration (year-month-day) from 2019-03-01   to  2024-02-29

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    IBM RESEARCH GMBH CH (RUESCHLIKON) coordinator 1˙999˙916.00

Map

 Project objective

I will experimentally investigate hybrid superconductor/semiconductor devices for realizing novel topological states of matter, with interest both in fundamental physics and quantum computing applications. Common denominator of the proposed experiments is a regime where the characteristic energy scales of the system, namely Fermi energy, spin orbit interaction correction, superconducting gap and Zeeman splitting are comparable to each other, resulting in unique and mostly uncharted physical territories. Differently from the most widespread use of semiconductor nanowires coupled to superconductors, I will employ novel hybrid two-dimensional electron gases (2DEGs) where the superconductor is grown in-situ and matched to the semiconductor lattice. This novel system was mainly developed by the team I supervise, during the last two years. Compared to the conventional nanowire-based approach, hybrid 2DEGs are readily available, characterized by very low disorder and more amenable to complex sample designs. The work will focus on: 1) Taking full advantage of the planar geometry to study spatial and non-local properties of individual Majorana wires, as well as branched geometries. These experiments will constitute critical tests to establish if the commonly observed zero bias peaks are indeed associated with Majorana modes and pave the way to complex networks of interacting Majorana wires, a requirement for quantum computing. 2) Studying topological phenomena in multi-terminal Josephson junctions (JJs), with particular emphasis on tuning the superconducting phase difference across electrodes pairs. Topological JJs offer a new and possibly advantageous path forward to create and manipulate Majorana modes not explored up to date, including the possibility to reach the topological regime for vanishing small external magnetic fields, useful for applications. Success of the proposal will constitute a key step forward towards topological quantum computing.

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The information about "TOPO2DEG" are provided by the European Opendata Portal: CORDIS opendata.

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