Objective
Quantum networking would enable the connection of quantum processing nodes to increase computing power, long distance intrinsically secure communication, and the sharing of quantum resources over wide networks. Fully realizing these prospects requires local nodes with many coupled qubits connected by photonic links. Currently, qubits with good prospects for scaling to large numbers provide no optical interface, while optically addressable systems appear difficult to scale. This project aims to establish the fundamentals for quantum networks consisting of potentially scalable semiconductor spin qubits in gated GaAs quantum dots. These electrically controlled qubits have been proven viable for quantum computing, but so far have not been interfaced coherently with photons.
To achieve the latter, we plan to use local electric fields generated by gate electrodes on both sides of a quantum well to create bound exciton states in a semiconductor structure that also hosts quantum dot qubits. These hybrid devices will make results from semiconductor quantum optics and self-assembled quantum dots applicable to gate-defined quantum dots. Besides laying the foundations for our technological goal, such a connection of two very active subfields will open a broad range of new possibilities.
Building on the capability to optically address our qubits, we plan to implement a protocol to transfer their quantum state to a photon. In addition, we plan to implement exchange-based two-qubit gates for two-electron spin qubits, which promise a much higher fidelity than the demonstrated Coulomb-coupled gates. Such high fidelity entangling gates are essential for quantum information processing. We then aim to integrate a photon interface into a two-qubit device in order to entangle a photonic flying qubit and a scalable semiconductor qubit. Finally, two such devices will be used to entangle separate semiconductor qubits via a photonic link, thus demonstrating a minimal network.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering computer hardware quantum computers
- natural sciences physical sciences optics
- natural sciences physical sciences electromagnetism and electronics semiconductivity
- natural sciences physical sciences quantum physics quantum optics
- natural sciences physical sciences theoretical physics particle physics photons
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
ERC-STG - Starting Grant
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2015-STG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
52062 Aachen
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.