Project description
Scaling quantum computing with silicon spins
Quantum information processing holds the key to revolutionising technology, but one major challenge remains: the reliable integration and control of qubits in silicon, the backbone of modern information technology. Previous efforts using the electronic spin of quantum dots or dopants have been limited, as they can only entangle qubits in close proximity, restricting scalability. This has hindered the expansion of silicon-based quantum systems. The ERC-funded OpENSpinS project aims to overcome these barriers by using nuclear spins of erbium dopants as qubits, controlled and entangled with photons. Through innovative nanophotonic resonators and optical addressing, OpENSpinS will pave the way for scalable, long-distance quantum networks, combining the strengths of photons and nuclear spins.
Objective
A major breakthrough in quantum information processing is expected once “qubits”, carriers of quantum information, can be reliably integrated and controlled in silicon – the basis of today’s advanced classical information technology. Previous qubit realizations used the electronic spin of quantum dots or dopants, i.e. atoms of a different species replacing silicon in the lattice. However, this approach has only allowed for the entanglement of qubits in immediate proximity, which has hindered increasing the size of silicon-based quantum information processing systems. In OpENSpinS, these limitations will be overcome by using the nuclear spins of erbium dopants as qubits. These are initialized, read-out and controllably entangled using photons in the minimal-loss band of existing fiber-optical infrastructure. To demonstrate the unique potential of this approach, the specific objectives of the proposal are: I) The fabrication of nanophotonic resonators with unprecedented Purcell enhancement to enable coherent spin-photon coupling, II) the direct optical addressing and control of nuclear spin qubits with long coherence, and III) the implementation of optically-controlled two-qubit quantum gates and entanglement, both within a node and over distance. The proposed system combines the advantages of two leading platforms for quantum information processing: the bandwidth and long-distance connectivity of photons at telecommunications wavelength with the robust control and hour-long qubit storage achievable with nuclear spins in silicon. As the proposed chip-integrated resonators can be manufactured using established processes of the semiconductor industry, the novel hardware platform implemented in OpENSpinS offers unique prospects for future up-scaling of quantum information processing systems and quantum networks.
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 electromagnetism and electronics semiconductivity
- natural sciences chemical sciences inorganic chemistry metalloids
- natural sciences physical sciences theoretical physics particle physics photons
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
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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HORIZON.1.1 - 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.
HORIZON-ERC - HORIZON ERC Grants
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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-2024-COG
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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.
80333 Muenchen
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.