Chang Liu

  • phone: 609-243-2301
  • email: cliu@pppl.gov

Chang Liu, 刘畅, is a postdoctoral research associate at the Theory Department of the Princeton Plasma Physics Laboratory. He received his PhD in 2017 from Princeton University, studying the physics of runaway electrons in tokamaks, advised by Dr. Dylan Brennan and Prof. Amitava Bhattacharjee.

His work focuses on the the kinetic physics of high energy runaway electrons generated in tokamak discharges. Specifically, he studied the excitations of various plasma waves due to runaway electrons, and how these waves can affect the runaway electrons dynamics. His theory calculations and numerical simulation results show these wave-particle interaction can have significant effect on the runaway electron avalanche rate. Many of the new findings have been confirmed in recent tokamak experiments.

  • "Momentum transport and nonlocality in heat-flux-driven magnetic reconnection in high energy density plasmas"
    Chang Liu, Will Fox et al. , Phys. Rev. E 96, 043203 (2017)
  • "Adjoint Fokker-Planck equation and runaway electron dynamics"
    Chang Liu, Dylan P. Brennan et al., Phys. Plasmas 23, 010702 (2016)
  • "Nonlinear frequency shift of electrostatic waves in general collisionless plasma: unifying theory of fluid and kinetic nonlinearities"
    Chang Liu & Ilya Y. Dodin, Phys. Plasmas 22, 082117 (2015)