Weighted-Graph-Theoretic Methods for Many-Body Corrections within ONIOM: Smooth AIMD and the Role of High-Order Many-Body Terms
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We numerically investigate the minimum number of interacting particles,which is required for the onset of strong chaos in quantum systemson a one-dimensional lattice with short-range and long-range interactions.We consider multiple system sizes which are at least three times largerthan the number of particles and find that robust signatures of quantumchaos emerge for as few as 4 particles in the case of short-rangeinteractions and as few as 3 particles for long-range interactions,and without any apparent dependence on the size of the system.more » « less