Fig. 24.

Evolution of 2D and 3D simulations of an electron-positron plasma field $\mathbf{B}\sim tanh(\mathrm{z}){\mathbf{e}}_{\mathrm{x}}+\mathrm{sech}(\mathrm{z}){\mathbf{e}}_{\mathrm{y}}$ with $\sigma =100$ and domain size $L_{\mathrm{x}}\times L_{\mathrm{z}}=300d_{\mathrm{i}}\times 194d_{\mathrm{i}}$  ($L_{\mathrm{y}}=300d_{\mathrm{i}}$ for 3D): a 2D: color-coded current density from at ${\omega }_{\mathrm{pe}}t=175$ and ${\omega }_{\mathrm{pe}}t=375$; b 3D: current density and a 3D isosurface of the plasma density colored by the current density at ${\omega }_{\mathrm{pe}}t=175$ and ${\omega }_{\mathrm{pe}}t=375$.

Image reproduced with permission from Guo et al. (2015), copyright by AAS