Gyrokinetic theory

Gyrokinetic theory is a framework used in plasma physics to simplify the study of highly charged particles, like electrons and ions, in magnetic fields. In such environments, particles spiral rapidly around magnetic field lines while slowly drifting. The theory averages out this fast spiral motion, focusing on the slower, more meaningful changes in particle behavior. This approach reduces complex calculations, making it easier to understand and predict plasma turbulence and stability—key factors in designing efficient fusion reactors and understanding space plasmas—without losing critical physical details.