Fig. 2 | Communications Physics

Fig. 2

From: Non-hermitian topology as a unifying framework for the Andreev versus Majorana states controversy

Fig. 2

Emergence of non-Hermitian topology for finite length uniform wires. Various quantities versus Zeeman field \(B/{B}_{{\rm{c}}}\) are displayed for five (uniform potential) nanowires with decreasing lengths \({L}_{{\rm{S}}}\): aj shows spectra for isolated (decoupled from the reservoir) nanowires (first row) and for open (coupled to the reservoir) nanowires (second row). ko shows the non-Hermitian topology criterion, while pt shows the decay asymmetry. Length dependence: u energy splitting of overlapping Majoranas as a function of length \({L}_{{\rm{S}}}\) in an isolated wire. v decay asymmetry \(\gamma /\Gamma\) as a function of length \({L}_{{\rm{S}}}\) for the open wire. The exponential crossover behaviour of the energy splitting (blue dashed fit in (u)) is captured by the exponential saturation of \(\gamma /\Gamma \to 1\) within the non-Hermitian framework (red dashed fit in (v))

Back to article page