601749.fig.002a
(a)
601749.fig.002b
(b)
601749.fig.002c
(c)
601749.fig.002d
(d)
Figure 2: (Topological) transition from the 𝑁 = 0 sector (a), (b), (c) to the 𝑁 = 1 sector (d) by twisting and subsequent capture of a magnetic (anti)monopole in the core of the final intersection. Arrows indicate the direction of center flux.