(Color online) Growth rate and current sheet width versus the Lundquist number for . Red crosses, green squares, and blue circles show gyrokinetic results for (βe, σ) = (0.3, 0.01), (0.075, 0.0025), (0.01875, 0.000625), respectively. Red solid, green dashed, and blue dotted-dashed lines are the corresponding two-fluid scaling.14 The relevant scale lengths are identified on the right axis of the right panel.
(Color online) Growth rate and current sheet width versus the Lundquist number for . Color and symbol schemes are the same as in Fig. 1. Lines are the two-fluid scalings obtained from Ref. 14. The scale lengths labelled on the right panel are fixed except ρe (the value of ρe shown corresponds to σ = 0.01). The points in the box are used to diagnose temperature fluctuations in Fig. 3.
(Color online) Eigenfunctions for the βe = 0.3 case, and the polytropic indices of ions and electrons in the perpendicular and the parallel directions. A spatially changing polytropic index means the equation of state is not polytropic.
(Color online) Ion temperature dependence of the tearing growth rate and current layer width.
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