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A Rydberg-Decorated Atomic Array for the quantum simulation of Gauge theories

Project description

A versatile tool for exploring strongly correlated quantum systems

Understanding quantum materials and particle interactions requires tackling systems where particles are strongly correlated, meaning their behaviours are deeply interdependent. The dynamics of such systems, such as spin liquids and high-temperature superconductors, cannot be captured by traditional computational methods, especially in higher dimensions. With the support of the Marie Skłodowska-Curie Actions programme, the RyDAG project will introduce a strontium-88 Rydberg tweezer platform for exploring strongly correlated quantum systems. This platform, combined with an innovative superatom framework, will allow the simulation of complex 2D gauge dynamics for the first time. The proposed method will bypass the limitations of conventional tools, offering a new way to explore quantum systems. Project work will set the stage for future discoveries in quantum physics.

Objective

Gauge theories form a cornerstone of modern physics, underpinning the Standard Model of particle interactions and providing effective low-energy descriptions of strongly correlated condensed matter systems, such as spin liquids and high-temperature superconductors. Their broad applicability, particularly in two and three dimensions, makes them a central topic of current research. Yet, analytical approaches are notoriously difficult, and numerical methods remain restricted to low-dimensional systems and short timescales.
Quantum simulators, with their high degree of controllability, offer a powerful path to overcome these limitations and explore higher-dimensional gauge theories. Rydberg atom arrays are especially promising: the configurability of optical tweezers combined with the Rydberg blockade can naturally enforce gauge constraints. Yet, on a 2D lattice, realising gauge invariance and magnetic (plaquette) interactions requires (at least) three-body interactions, which remain a significant challenge. RyDAG addresses this by building a strontium-88 Rydberg tweezer platform, which combines a dual approach with the superatom framework developed by our theory collaborators to simulate, for the first time, plaquette dynamics. The project will particularly focus on the study of equilibrium and dynamical properties of a U(1) 2D lattice gauge theory known as the Rokhsar–Kivelson model. Beyond gauge theory simulation, the project will also establish the superatom framework as a versatile toolbox for investigating complex spin systems.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

FUNDACIO INSTITUT DE CIENCIES FOTONIQUES
Net EU contribution
€ 194 074,56
Address
AVINGUDA CARL FRIEDRICH GAUSS 3
08860 Castelldefels
Spain
Region
Este Cataluña Barcelona
Activity type
Research Organisations
Links
Total cost
No data