Matteo Rossi (Algorithmiq & University of Helsinki)

Exploring Many-Body Dynamics with Quantum Simulations on near-term hardware

Quantum computers are beginning to deliver on their promise as tools for exploring complex quantum phenomena. In this talk, I’ll present recent results showing that even today’s noisy quantum processors can access the rich dynamics of many-body quantum chaos—long considered a benchmark for quantum advantage. Crucially, this progress is driven not only by hardware improvements, but by advances in methods: powerful error mitigation, noise characterization, and measurement techniques are now enabling simulations that were previously out of reach. I’ll focus on a class of chaotic quantum circuits that allow for partial analytical validation, and show how we push beyond this point into regimes where classical methods struggle. These developments mark a significant step toward practical quantum simulation, highlighting how algorithmic innovation is unlocking real utility on near-term devices.