Abstract
A topological superconducting wire with an effective time-reversal symmetry is known to have a topological classification in the presence of interactions. The topological index counts the number of Majorana end states, negative corresponding to end states that are odd under time reversal. If such a wire is weakly coupled to a normal-metal lead, interactions induce a Kondo-like correlated state if . We show that the Kondo-like state manifests itself in an anomalous temperature dependence of the zero-bias conductance and by an anomalous Fano factor for the zero-temperature normally reflected current at finite bias. We also consider the splitting of the effective Kondo resonance for weak symmetry-breaking perturbations.
- Received 12 December 2015
DOI:https://doi.org/10.1103/PhysRevB.93.125433
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