@article{9225,
  author = {T. Jitsuk and M.J. Pueschel and P. W. Terry and A. Di Siena},
  title = {Turbulent Multiscale Interactions between Tearing Modes, Trapped-Electron Modes, and Zonal Flows},
  abstract = {Interactions between MHD-scale tearing modes (TMs) and ion-gyroradius-scale trapped-electron modes (TEMs) in a fusion plasma are simulated with global gyrokinetics, using a consistent set of fixed equilibrium profiles. Unstable core TMs nonlinearly couple and transfer energy to smaller-scale stable TMs near the edge, where TEMs are present. Magnetic stochasticity from these edge TMs erodes TEM-generated zonal flows near the edge rational surfaces, leading to strongly increased electrostatic flux. This interaction of macro- and microscale modes suggests it may be possible to control microturbulence through current-profile modifications.},
  year = {2026},
  journal = {Physical Review Letters},
  volume = {136},
  pages = {015101},
  doi = {10.1103/dlct-5vwy},
  language = {eng},
}