Quantization of integrable and chaotic three-particle Fermi-Pasta-Ulam-Tsingou models

Alio Issoufou Arzika, Andrea Solfanelli, Harald Schmid +1

We study the transition from integrability to chaos for the three-particle Fermi-Pasta-Ulam- Tsingou (FPUT) model. We can show that both the quartic b-FPUT model ($\alpha$ = 0) and the…