Simulating neutrino oscillations on a superconducting qutrit

Precise measurements of parameters in the PMNS framework might lead to new physics beyond Standard Model. However, they are incredibly challenging determine neutrino oscillation experiments. Quantum simulations can be a powerful supplementary tool study these phenomenologies. In today's noisy quantum hardware, encoding neutrinos multi-qubit system requires redundant basis and tricky entangling gates. We encode three-flavor superconducting qutrit its oscillations using theory with time evolution expressed terms single The is engineered from multi-level structure IBM transmon devices. High-fidelity gate control readout fine-tuned programming microwave pulses high-level language. Our on real hardware match well analytical calculations three cases: vacuum, interaction matter, CP-violation.