Fig. 4: Conductance spectra for the clean nanowire.
a Local (GLL) and b non-local conductance (GLR) signatures for a nanowire of length 2.25 μm, with a potential profile as shown in Fig. 1c. c Local and d non-local conductance spectra for a nanowire of length 4.5 μm, with a potential profile as shown in Fig. 1c. Both the local and the non-local conductances show the bulk gap closing and reopening, which signals a topological transition, followed by the emergence of a near-zero energy state with a splitting that oscillates as a function of the externally applied magnetic field, \({V}_{Z}^{ext}\). The bare superconducting gap in the parent superconductor Δ0 sets the scale for all energies. GLL, GLR are plotted as a function of the biasing energy e, and the externally applied magnetic field \({V}_{Z}^{ext}\) and are measured in units of e2/h, which is the conductance quantum, e being the electronic charge and h being Planck’s constant. The colorbars represent the magnitude of the DOS, LDOS.
