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Research in this Seed has resulted in important methods to theoretically predict decoherence, or information loss, in quantum systems that could function as quantum computers or quantum sensors. The project developed algorithms for practical implementation on current noisy-intermediate scale quantum computers. The first focused on modelling temperature-dependent relaxation in single-molecule magnets with demonstrations of efficacy on IonQ’s Aria-1 trapped-ion quantum processor. The second focused on modelling parity-time symmetric dynamics, suggested to be useful in quantum computing and quantum sensing, with demonstrations on IBM’s quantum devices. One of the primary challenges faced by these algorithms is the presence of noise in the quantum hardware. To this end, research in this Seed also considered optimal state-preparation protocols to prepare and control useful quantum states in qubits when noise and dissipation are present. These three advances were published in the three papers noted to the right.