@article{20503,
  abstract     = {We introduce a class of interacting fermionic quantum models in d dimensions with nodal interactions that exhibit superdiffusive transport. We establish nonperturbatively that the nodal structure of the interactions gives rise to long-lived quasiparticle excitations that result in a diverging diffusion constant, even though the system is fully chaotic. Using a Boltzmann equation approach, we find that the charge mode acquires an anomalous dispersion relation at long wavelength ωðqÞ ∼ qz with dynamical exponent z ¼ min½ð2n þ dÞ=2n; 2, where n is the order of the nodal point in momentum space. We verify our predictions in one-dimensional systems using tensor-network techniques.},
  author       = {Wang, Yupeng and Ren, Jie and Gopalakrishnan, Sarang and Vasseur, Romain},
  issn         = {1079-7114},
  journal      = {Physical Review Letters},
  number       = {16},
  publisher    = {American Physical Society},
  title        = {{Superdiffusive transport in chaotic quantum systems with nodal interactions}},
  doi          = {10.1103/xx9z-4j6c},
  volume       = {135},
  year         = {2025},
}