@article{23027,
  abstract     = {Kinetic constraints are generally expected to slow down dynamics in many-body systems, obstructing or even
completely suppressing transport of conserved charges. Here, we show how gauge theories can defy this wisdom
by yielding constrained models with faster-than-diffusive dynamics. We first show how, upon integrating out
the gauge fields, one-dimensional U(1) lattice gauge theories are exactly mapped onto XX models with nonlocal
constraints. This class of kinetically constrained models interpolates between free theories and highly constrained
local fermionic models. We find that energy transport is superdiffusive over a broad parameter regime. Even
more drastically, spin transport exhibits ballistic behavior, albeit with anomalous finite-volume properties as a
consequence of gauge invariance. Our findings are relevant to current efforts in quantum simulations of gauge theory dynamics and anomalous hydrodynamics in closed quantum many-body systems.},
  author       = {Bhakuni, Devendra Singh and Verdel, Roberto and Desaules, Jean-Yves Marc and Serbyn, Maksym and Ljubotina, Marko and Dalmonte, Marcello},
  issn         = {2469-9969},
  journal      = {Physical Review B},
  number       = {14},
  publisher    = {American Physical Society},
  title        = {{Anomalously fast transport in nonintegrable lattice gauge theories}},
  doi          = {10.1103/3371-88bl},
  volume       = {114},
  year         = {2026},
}