Figure 4 | Scientific Reports

Figure 4

From: Accessing the degree of Majorana nonlocality in a quantum dot-optical microcavity system

Figure 4

(a) Conductance through the QD [Eq. (6)] as a function of bias-voltage eV describing the case of MZMs with less degree of nonlocality (\(\lambda _{c,R} \gg \varepsilon _M\)) for increasing number of photon occupation \(\langle \nu \rangle \). For a better viewing, the curves are offset along the y axis. (b) Same curves depicted in (a), but considering eV only near zero-bias without offset along y axis. (c) Conductance through the QD at zero-bias \(eV = 0\) for increasing number of \(\langle \nu \rangle \) considering distinct values of \(\lambda _{c,R}\) . (d) Colormap showing the conductance behavior as a function of both the eV and \(\langle \nu \rangle \), for a range of eV corresponding to gray region of (a). Dashed light-green lines indicate the energies \(\epsilon _{QD}^{+}\) and \(\epsilon _{MZMs}^{+}\) of anticrossing points employed to estimate the degree of Majorana nonlocality \(\Omega _{M}^{2}=\epsilon _{MZMs}^{+}/\epsilon _{QD}^{+}\), as proposed by Prada et al.32. For the data shown in (d), \(\Omega _{M}\approx 0.35\).

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