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AndQC SIGNED

Andreev qubits for scalable quantum computation

Total Cost €

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EC-Contrib. €

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Partnership

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Project "AndQC" data sheet

The following table provides information about the project.

Coordinator
CHALMERS TEKNISKA HOEGSKOLA AB 

Organization address
address: -
city: GOETEBORG
postcode: 41296
website: www.chalmers.se

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 Sweden [SE]
 Total cost 3˙636˙822 €
 EC max contribution 3˙484˙107 € (96%)
 Programme 1. H2020-EU.1.2.1. (FET Open)
 Code Call H2020-FETOPEN-2018-2019-2020-01
 Funding Scheme RIA
 Starting year 2019
 Duration (year-month-day) from 2019-04-01   to  2023-03-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CHALMERS TEKNISKA HOEGSKOLA AB SE (GOETEBORG) coordinator 523˙473.00
2    CONSIGLIO NAZIONALE DELLE RICERCHE IT (ROMA) participant 700˙001.00
3    COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES FR (PARIS 15) participant 524˙926.00
4    TECHNISCHE UNIVERSITEIT DELFT NL (DELFT) participant 351˙516.00
5    UNIVERSITAT BASEL CH (BASEL) participant 350˙000.00
6    BUDAPESTI MUSZAKI ES GAZDASAGTUDOMANYI EGYETEM HU (BUDAPEST) participant 349˙250.00
7    KOBENHAVNS UNIVERSITET DK (KOBENHAVN) participant 348˙690.00
8    UNIVERSIDAD AUTONOMA DE MADRID ES (MADRID) participant 336˙250.00

Map

 Project objective

Our goal is to establish the foundations of a radically new solid state platform for scalable quantum computation, based on Andreev qubits. This platform is implemented by utilizing the discrete superconducting quasiparticle levels (Andreev levels) that appear in weak links between superconductors. Each Andreev level can be occupied by zero, one, or two electrons. The even occupation manifold gives rise to the first type of Andreev qubit, which has recently been demonstrated by some of the consortium members. We will characterize and mitigate the factors limiting the coherence of this qubit to promote these proof of concept experiments towards a practical technology. The odd occupation state gives rise to a second type of qubit, the Andreev spin qubit, with an unprecedented functionality: a direct coupling between a single localized spin and the supercurrent across the weak link. Further harnessing the odd occupation state, we will investigate the so far unexplored scheme of fermionic quantum computation, with the potential of efficiently simulating electron systems in complex molecules and novel materials. The recent scientific breakthrough by the Copenhagen node of depositing of superconductors with clean interfaces on semiconductor nanostructures opened a realistic path to implement the Andreev qubit technology. In these devices, we can tune the qubit frequency by electrostatic gating, which brings the required flexibility and scalability to this platform. We will demonstrate single- and two-qubit control of Andreev qubits, and benchmark the results against established scalable solid-state quantum technologies, in particular semiconductor spin qubits and superconducting quantum circuits. To carry out this research program, we rely on the instrumental combination of experimentalists, theorists and material growers, together having the necessary expertise on all aspects of the proposed research.

 Deliverables

List of deliverables.
Website and Logo Websites, patent fillings, videos etc. 2020-04-10 23:49:44

Take a look to the deliverables list in detail:  detailed list of AndQC deliverables.

 Publications

year authors and title journal last update
List of publications.
2020 Frederick S Thomas, Andreas Baumgartner, Lukas Gubser, Christian Jünger, Gergő Fülöp, Malin Nilsson, Francesca Rossi, Valentina Zannier, Lucia Sorba, Christian Schönenberger
Highly symmetric and tunable tunnel couplings in InAs/InP nanowire heterostructure quantum dots
published pages: 135003, ISSN: 0957-4484, DOI: 10.1088/1361-6528/ab5ce6
Nanotechnology 31/13 2020-04-10

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

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