article published yes Devendra Singh Bhakuni author Roberto Verdel author Jean-Yves Marc Desaules author 6c292945-a610-11ed-9eec-c3be1ad62a800000-0002-3749-6375 Maksym Serbyn author 47809E7E-F248-11E8-B48F-1D18A9856A870000-0002-2399-5827 Marko Ljubotina author F75EE9BE-5C90-11EA-905D-16643DDC885E0000-0003-0038-7068 Marcello Dalmonte author MaSe department Non-Ergodic Quantum Matter: Universality, Dynamics and Control project IST-BRIDGE: International postdoctoral program project 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. American Physical Society2026 eng 2469-9950 2469-9969 2509.0888910.1103/3371-88bl 11414 Bhakuni, Devendra Singh, et al. “Anomalously Fast Transport in Nonintegrable Lattice Gauge Theories.” <i>Physical Review B</i>, vol. 114, no. 14, L140103, American Physical Society, 2026, doi:<a href="https://doi.org/10.1103/3371-88bl">10.1103/3371-88bl</a>. Bhakuni, Devendra Singh, Roberto Verdel, Jean-Yves Marc Desaules, Maksym Serbyn, Marko Ljubotina, and Marcello Dalmonte. “Anomalously Fast Transport in Nonintegrable Lattice Gauge Theories.” <i>Physical Review B</i>. American Physical Society, 2026. <a href="https://doi.org/10.1103/3371-88bl">https://doi.org/10.1103/3371-88bl</a>. Bhakuni, D. S., Verdel, R., Desaules, J.-Y. M., Serbyn, M., Ljubotina, M., &#38; Dalmonte, M. (2026). Anomalously fast transport in nonintegrable lattice gauge theories. <i>Physical Review B</i>. American Physical Society. <a href="https://doi.org/10.1103/3371-88bl">https://doi.org/10.1103/3371-88bl</a> Bhakuni DS, Verdel R, Desaules J-YM, Serbyn M, Ljubotina M, Dalmonte M. Anomalously fast transport in nonintegrable lattice gauge theories. <i>Physical Review B</i>. 2026;114(14). doi:<a href="https://doi.org/10.1103/3371-88bl">10.1103/3371-88bl</a> D. S. Bhakuni, R. Verdel, J.-Y. M. Desaules, M. Serbyn, M. Ljubotina, and M. Dalmonte, “Anomalously fast transport in nonintegrable lattice gauge theories,” <i>Physical Review B</i>, vol. 114, no. 14. American Physical Society, 2026. D.S. Bhakuni, R. Verdel, J.-Y.M. Desaules, M. Serbyn, M. Ljubotina, M. Dalmonte, Physical Review B 114 (2026). Bhakuni DS, Verdel R, Desaules J-YM, Serbyn M, Ljubotina M, Dalmonte M. 2026. Anomalously fast transport in nonintegrable lattice gauge theories. Physical Review B. 114(14), L140103. 230272026-10-01T15:48:35Z2026-10-07T09:29:50Z