Group seminar at MPQ and Zoom: Simulating doped magnetism with Rydberg tweezer array

Mu Qiao, Institut d’Optique Paris, France
Group seminar at MPQ lecture hall and Zoom
Thursday, 02 April 2026, 09:00 am (MEZ)

Quantum simulation has achieved remarkable control, yet it is still governed by a platform--model division. A key step toward a more general quantum simulator is to bring mobile dopants into the Rydberg platform so that doped magnetism and physics become directly accessible. Here we report the direct experimental realization of the bosonic t-J model in a Rydberg atom array. By coherently encoding spins and hard-core bosonic holes into three Rydberg levels, we extend Rydberg arrays from purely magnetic Hamiltonians to itinerant magnetism. Using this system, we observe dynamical hole--spin phase separation, the formation of repulsively bound hole pairs, and the effects of next-nearest-neighbor tunneling. We further observe kinetically induced hole--magnon bound states in frustrated lattices and show how single dopants locally restructure magnetism in 2D triangular lattices, opening a path to exploring pairing mechanisms relevant to unconventional superconductivity and Moiré materials within a unified platform.