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TRapped ENSembles of Circular RYdBErg atoms for quantum simulation

Objective

TRENSCRYBE proposes a groundbreaking concept for a quantum simulator (QS) of spin systems. QSs aim at an in-depth understanding of many-body physics, important for fundamental issues (quantum transport, phase transitions), but also for the development of engineered materials. A QS transcribes the system of interest into another with the same dynamics but with a fully controlled Hamitlonian parameter set. It provides a complete access to all the systems observables and allows the exploration of regimes, in which numerical simulations are difficult or impossible due to the huge size of the Hilbert space. QSs of spin systems are the focus of an intense activity, e.g. with trapped ions, superconducting devices, atoms in optical lattices or low-angular-momentum Rydberg atoms. I propose with TRENSCRYBE a disruptive QS using trapped circular Rydberg atoms. Their microwave spontaneous emission can be inhibited, extending their lifetime in the minute range. In contrast with ordinary Rydberg states, they can be trapped in optical lattices, allowing one to take full benefit from such exceptional lifetimes. I propose an innovative preparation method of ultra-cold defect-free chains with a few tens of atoms. The QS realizes a Nearest-Neighbor XXZ spin-1/2 Hamiltonian in a transverse field, the spin states being coded on circular levels. Its parameters are fully tunable by adjusting a static electric field and a microwave dressing applied on the atoms. I will first benchmark this QS by adiabatic evolutions through the phase diagram of a 1-D chain in a regime where numerical results are available. I will explore quenches through quantum phase transitions and the generation of defects in a regime where numerical or theoretical predictions are difficult. I will realize a first step towards 2-D arrays with spin ladders and explore their topological phases. The realization of TRENSCRYBE will open a whole realm of new possibilities for quantum simulation of spin systems.

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.

ERC-ADG - Advanced 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-ADG

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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.

€ 2 146 607,50
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.

€ 2 240 000,00

Beneficiaries (3)

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