Bibliographic Details
| Title: |
Perpendicular ion heating in turbulence and reconnection: magnetic moment breaking by coherent fluctuations. |
| Source: |
Journal of Plasma Physics. Feb2026, Vol. 92 Issue 1, p1-30. 30p. |
| Subjects: |
Magnetic reconnection, Plasma heating, Plasma turbulence, Cyclotron resonance, Turbulence, Diffusion kinetics, Plasma physics |
| Abstract: |
We study the interaction of an ion with a fluctuation in the electromagnetic fields that is localised in both space and time. We study the scale dependence of the interaction in both space and time, deriving a generic form for the ion's energy change, which involves an exponential cutoff based on the characteristic time scale of the electromagnetic fluctuation. This leads to diffusion in energy in both $v_\perp$ and $v_\parallel$. We show how to apply our results to general plasma physics phenomena, and specifically to Alfvénic turbulence and to reconnection. Our theory can be viewed as a unification of previous models of stochastic ion heating, cyclotron heating and reconnection heating in a single theoretical framework. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
