Plasmoid Instability in Evolving Current Sheets and Onset of Fast Reconnection

Yi-Min Huang, Luca Comisso, A. Bhattacharjee

The scaling of plasmoid instability maximum linear growth rate with respect to Lundquist number $S$ in a Sweet-Parker current sheet, ${\gamma }_{max}\sim S^{1/4}$, indicates that at high $…