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Quantum Optical Physics with Neutral-Atom Waveguide-QED

Objective

The coupling of cold atoms to nanophotonic devices has recently opened a variety of novel opportunities for controlling light-matter interactions. Tailored dispersion relations offer unique features beyond conventional settings. In particular, photonic-crystal waveguides enable tight transverse confinement of the propagating light, strong atom-photon coupling in single pass and tunable long-range atom-atom interactions. While this research area is extensively studied theoretically, experimental progress has been much more modest. This project aims at turning the emerging neutral-atom waveguide-QED paradigm into a mature field.

The primary challenge will be to develop a versatile apparatus where ensembles of cold atoms can be trapped in the proximity of slow-mode photonic-crystal waveguides, using a specific material, original structure designs and novel atom-delivery techniques. The main project objectives are then threefold:

- The demonstration of deterministic photon-photon interaction in a lossless single-pass configuration and its application to efficient quantum state engineering
- The realization of multiphoton-state engineering via atomic entangled states and subradiant and superradiant dynamics.
- The exploration of a novel bandgap physics uniquely accessible with the developed photonic-crystal platform for strong atom-atom and photon-photon interactions.

The successful realization of the project based upon the interdisciplinary interface of cold atoms and nanoscale waveguides could elevate this approach to a new route for strongly interacting photons and atoms, with unique possibilities for integrated quantum technologies, quantum non-linear optics as well as for many-body quantum physics.

Fields of science (EuroSciVoc)

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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)

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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.

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.

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.

(opens in new window) ERC-2022-ADG

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Host institution

SORBONNE UNIVERSITE
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.

€ 2 211 250,00
Address
21 RUE DE L'ECOLE DE MEDECINE
75006 PARIS
France

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Region
Ile-de-France Ile-de-France Paris
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.

€ 2 211 250,00

Beneficiaries (2)

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