Quantum computation of molecular geometry via many-body nuclear spin echoes, part III

This is part 3 of a 4 part talk on ArXiv:2510.19550, focusing on the experimental implementation of Hamiltonian-driven out-of-time-ordered correlators (OTOCs) in superconducting quantum hardware. We report here on the measurement of OTOCs using a Willow superconducting quantum processor to quantum simulate molecular signals, measured from two different organic molecule types suspended in a nematic liquid crystal by standard NMR techniques. The quantum computation is compiled from CZ gates and arbitrary-angle fermionic simulation gates that natively represent the molecular dynamics with high fidelity and have allowed us to learn the interrogated molecular parameters.