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High-Frequency Spin Entanglement Generation in Diamond

Objective

This proposal promotes a research program in quantum nano-photonics to be carried out by dr T. Jakubczyk. It aimes at achieving high frequency of generation and detection of spin-spin entanglement in spatially separated nitrogen vacancy (NV) centers in diamond. While current photon collection efficiencies (few per cent) and entanglement rates (approx. one entanglement event per minute) may be sufficient for proof-of-principle experiments, they need to be greatly improved for the implementation of practical quantum networks.
The project builts on a recent progress achieved in the host institution in the deterministic cavity-assisted enhancement of the coherent photon emission rate of NV centers embedded in a diamond membrane. The increase of the decay rate results in enhanced radiative efficiency and makes the emission robust against dephasing enhancing the photon indistinguishability and boosting the photon extraction efficiency. The aim of the project is to establish the NV center as spin- and optically- coherent, specifically by decreasing the linewidth broadening resulting from the minimal necessary processing of the diamond crystal and introducing significant improvements to the cavity. The estimated resulting spin-spin entanglement rates are in the Mhz-range.
The projects opens new ways of studying complex and non-trivial phenomena resulting from the enhanced light-matter coupling in the NV center and in other quantum emitters. Success of this project may provide a route to the realisation of scalable quantum computers based on optical networks of electronic and nuclear spins.

Fields of science (EuroSciVoc)

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Programme(s)

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Topic(s)

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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-2017

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Coordinator

UNIVERSITAT BASEL
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.

€ 187 419,60
Address
PETERSPLATZ 1
4051 Basel
Switzerland

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Region
Schweiz/Suisse/Svizzera Nordwestschweiz Basel-Stadt
Activity type
Higher or Secondary Education Establishments
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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.

€ 187 419,60
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