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cond-mat.str-el2025
Breakdown of Quantum Chaos in the Staggered-Field XXZ Chain: Confinement and Meson Formation
Julia Wildeboer, Marton Lajer, Robert M. Konik
Confinement produces mesonic bound states, but their existence alone does not determine the statistical organization of the many-body spectrum. We investigate this connection in th…
cond-mat.str-el2025
Hamiltonian parameter inference from resonant inelastic x-ray scattering with active learning
Marton K. Lajer, Xin Dai, Kipton Barros +3
Identifying model Hamiltonians is a vital step toward creating predictive models of materials. Here, we combine Bayesian optimization with the EDRIXS numerical package to infer Ham…