Figure 4: Topological characterization of a 5-terminal junction, each contact having a single channel. | Nature Communications

Figure 4: Topological characterization of a 5-terminal junction, each contact having a single channel.

From: Multi-terminal Josephson junctions as topological matter

Figure 4

The coloured areas display a nonzero Chern number C12. The boundaries of these areas correspond to the projection of the Weyl singularity lines to the (ϕ3, ϕ4)-plane. In a 3D subspace the curves can be assigned a charge.

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