When simulations fall short, this spectrometer learns for itself
ChemistryPhysics
THE AI ANGLE
Iteratively tuning pulse sequences on physical samplesResearchers at Aarhus University connected a dynamic nuclear polarization spectrometer to a Bayesian optimization algorithm. The algorithm tests microwave pulse sequences directly on physical samples without prior spin simulations. In a complex spin system, the learned sequence produced 70 percent greater signal enhancement than the reference method.
THE TEACHING ANGLE
Instructors can contrast the cost of days of automated experimental optimization against the difficulty of modeling large spin systems.Read the original at phys.org Generate teaching or study materials