Project description
Hard 0-π qubits for the future of quantum computing
Quantum computing has made significant progress in recent years, driving demand for its development. However, challenges remain, such as high error rates, limited qubit counts, and environmental noise. The 0-π qubit addresses these issues, being inherently protected against noise and offering better coherence times, thereby paving the way for fault-tolerant quantum computing. The ERC-funded MCOPI project aims to demonstrate the hard 0-π qubit, a fully protected version, and develop an innovative and modular multi-chip quantum processing unit (QPU) architecture. It will use advanced 3D integration along with flip-chip technology to support quantum systems, and to research and improve decoherence mechanisms. It will also incorporate high-fidelity interconnect systems and optimise the qubit’s design.
Objective
The pursuit of scalable quantum computing requires groundbreaking solutions to overcome noise, high error rates, and the limited qubit counts of existing architectures. The 0-π (zero-pi) qubit, with its intrinsic protection against environmental noise, offers a transformative path toward fault-tolerant quantum computing, demonstrating superior coherence times compared to conventional superconducting qubits like the transmon. Despite recent advancements, a fully protected version—the hard 0-π qubit—remains unrealized, and the integration of these qubits into scalable, distributed architectures presents a critical, unresolved challenge.
This proposal seeks to experimentally demonstrate the hard 0-π qubit and develop a modular, multi-chip quantum processing unit (QPU) architecture. We will investigate and mitigate the decoherence mechanisms, optimize the qubit’s design for enhanced coherence, and implement a high-fidelity interconnect system to seamlessly link qubits across chips. Utilizing advanced 3D integration and flip-chip technology, our scalable architecture will be engineered to support large quantum systems with unparalleled noise resilience and coherence stability.
By combining a novel qubit design with state-of-the-art packaging technology, this project aims to lay the foundation for the first scalable, noise-resilient quantum computing platform powered by 0-π qubits. This breakthrough has the potential to unlock new frontiers in fault-tolerant quantum systems, enabling impactful applications across fields such as quantum chemistry, secure communication, and optimization problems. Ultimately, the project aspires to position Europe at the forefront of global quantum technology development.
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 superconductivity
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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-2025-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.
2628 CN DELFT
Netherlands
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.