Topological Majorana Two-Channel Kondo Effect

Abstract

A one-dimensional time-reversal-invariant topological superconductor hosts a Majorana Kramers pair at each end, where time-reversal symmetry acts as a supersymmetry that flips local fermion parity. We examine the transport anomaly of such a superconductor, floating and tunnel-coupled to normal leads at its two ends. We demonstrate the realization of a topologically-protected, channel-symmetric, two-channel Kondo effect without fine-tuning. Whereas the nonlocal teleportation vanishes, a lead present at one end telecontrols the universal transport through the other end.

arXiv comment4 pages, 4 figures

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• Theory of Coulomb blockaded transport in realistic Majorana nanowires
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• Non-Equilibrium Charge Dynamics in Majorana-Josephson Devices
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• Phase transitions in quantum dot-Majorana zero mode coupling systems