Preprint
Aug 2026
Learning Spin Hamiltonians from Terahertz Two-Dimensional Coherent Spectroscopy
Effective Hamiltonians connect microscopic interactions to measurable collective behavior in quantum materials, but determining their parameters directly from experiment remains a challenging inverse problem. We introduce a supervised machine-learning framework that infers Hamiltonian parameters from nonlinear terahert...
M. Mootz, Chuan-Kun Huang, Liang Luo et al.
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