Quantum 2025 – wissenschaftliches Programm

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THU: Thursday Contributed Sessions

THU 12: Quantum Thermalization: Contributed Session to Symposium

THU 12.8: Vortrag

Donnerstag, 11. September 2025, 16:00–16:15, ZHG105

Observing dynamical localization on a trapped-ion qudit quantum processor — •Gonzalo Camacho — Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln, Germany

Recent impressive advances in quantum processors have opened up the possibility to witness emergent dynamical behavior in quantum many-body systems. An outstanding example is the observation of time-crystalline behavior in periodically driven systems breaking the discrete symmetry of the drive. Going beyond qubit-based architectures, in this work we use a trapped-ion qudit quantum processor to study a disorder-free, spin-1 interacting Floquet model that displays time-crystalline behavior protected by symmetry of an effective prethermal Floquet Hamiltonian. We also address the role played by multipartite entanglement in the system dynamics through the Quantum Fisher Information, which can be employed as a proxy to characterize the crossover from dynamically localized to ergodic regimes. These results pave the way for the exploration of emergent non-equilibrium phenomena in higher-dimensional quantum systems.

Keywords: Quantum Simulation; Trapped-ions; Floquet prethermalization; Discrete time crystals; Quantum Fisher Information