Francesco Cesa - IQOQI Innsbruck, University of Innsbruck

Exploring frontiers in quantum science and information with neutral atom arrays: from theory to experiment  

Neutral atoms are a leading platform for quantum science, witnessing numerous breakthrough experiments in quantum simulation and computation in the last years. Dual-species atom arrays are a new frontier, promising new opportunities such as richer interaction regimes, mid-circuit measurements via species-selective readout, and simple paths to Floquet quantum simulation. 

In this talk, I will present our recent work on dual-species atom arrays, both theoretical and experimental. After introducing the platform and setting the theoretical framework [1], I will first present two theoretical results for globally-driven dual-species arrays: (i) I will show that, in sharp contrast with single-species platforms, they support universal quantum computation via global drivings [2]; (ii) I will show how efficient simulation of discrete local dynamics can be engineered in these systems [3]. Then, I will present experimental results on implementing Quantum Cellular Automata in a dual-species array featuring up to 35 atoms of Rb and Cs [4]. Finally, I will conclude with final outlook considerations on future directions. 

[1] F. Cesa, G. Calliari, A. Bassi, H. Pichler, in preparation (2026)

[2] F. Cesa, H. Pichler, PRL (2023)

[3] F. Cesa, A. Di Fini, D. Korbany, R. Tricarico, H. Bernien, H. Pichler, L. Piroli, arXiv:2601.16961 (2026)

[4] R. White, V. Ramesh, A. Impertro, S. Anand, F. Cesa, G. Giudici, T. Iadecola, H. Pichler, H. Bernien, arXiv:2601.16257 (2026)