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Quantum Optics with single flying electrons

Objective

In quantum optics, a single photon source as well as a single photon detector is the elementary building block for the manipulation of information coded into a quantum state, a qubit. When combined with beam splitters, polarizers etc., photonic qubits can be manipulated to process quantum information. A well-known example is quantum cryptography, a secure way to transmit information.
In analogy with photons, similar experiments should be possible with single flying electrons in a solid-state device. The advantage of performing quantum optics experiments with flying electrons is the existing Coulomb interactions between the electrons. Photons are basically non-interacting quantum particles and they therefore have a longer coherence time than electrons. However, due to the absence of interactions it is more difficult to construct a two-qubit gate, which operates at the single photon level. This represents a fundamental limitation to the development of quantum computation with photons.
Recent experiments have now demonstrated that quantum optics with single flying electrons is in reach. Indeed, it has been shown that a single electron can be transferred on-demand between distant quantum dots. In these experiments, flying electrons have been transported by a sound wave and high fidelity for single electron emission as well as single electron detection has been demonstrated. This opens the possibility to perform quantum optics experiments with electrons in solid-state devices, which we aim to realize with this proposal. Due to the fact that electrons in solids are strongly interacting particles, new quantum entanglement schemes can be envisioned, not possible with photons.

Fields of science (EuroSciVoc)

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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.

MSCA-IF-EF-ST - Standard EF

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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) H2020-MSCA-IF-2014

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Coordinator

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.

€ 173 076,00
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.

€ 173 076,00
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