Fig. 1
From: Cell structure formation in a two-dimensional density-based dislocation dynamics model
Left: Growth rates of fluctuations; dashed blue line: growth rate for wave-vectors aligned with the [10] lattice directions according to linear stability analysis (LSA), blue line: growth rate for fluctuations near [10], black line: growth rate for wave-vectors flaligned with the [11] lattice directions; discrete symbols: growth rates deduced from Fourier modes of the numerical solution for a Gaussian white noise as initial condition. Right: growth rates for fluctuations according to LSA over the entire domain of wave vectors. Parameters: A=D=0.1,α=0.3,τext=1.1;