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Quantum superiority with coherent states

Objective

The unique features of quantum mechanics enable communication and computation tasks impossible to achieve by classical means. This opens a tremendous potential for enhancing the power, efficiency and security of everyday interactions in our information-based society. The quest of the demonstration in physical systems of quantum superiority has led to milestone implementations, most notably of the distribution of secret keys with unconditional security or of elementary computations such as the efficient sampling of bosonic distributions.

In this project, we propose to develop and experimentally demonstrate a framework where quantum resources can be used to outperform their classical counterparts for a much larger range of problems than key distribution or boson sampling, with applications in algorithms, cryptography, communications, scheduling, routing, data mining, process monitoring and control or DNA sequencing. The theoretical basis of our framework is decomposed in three well defined elements-circuits, of increasing complexity, which can individually be used for specific quantum enhanced applications and together lead to the demonstration of the holy grail of quantum information science – quantum superiority for hard computation algorithms. The implementation of all the elements will be based on a photonic experimental platform exploiting a mapping of quantum information protocols involving multiple quantum bits of information to protocols based on coherent states of light in a superposition of optical modes. This is extremely appealing from a practical point of view and will be fully explored, in particular using silicon photonic technologies that allow for scalable devices involving fast switching operations, compact delay lines, and reconfigurable couplers, the main components of our circuits.

Our project sets a highly ambitious target, providing on the way powerful and readily accessible applications of quantum technologies.

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.

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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)

Programme(s)

Multi-annual funding programmes that define the EU’s priorities for research and innovation.

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.

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.

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.

(opens in new window) ERC-2017-STG

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Host institution

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Net EU contribution

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.

€ 1 494 738,00
Total cost

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.

€ 1 494 738,00

Beneficiaries (1)

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