Topological Majorana Two-Channel Kondo Effect

Zhi-qiang Bao; Fan Zhang

doi:10.1103/physrevlett.119.187701

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arXiv · 1607.04303

Topological Majorana Two-Channel Kondo Effect

Zhi-qiang Bao·Fan Zhang

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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.

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Zhi-qiang Bao, Fan Zhang. 2017-11-01. Topological Majorana Two-Channel Kondo Effect. https://doi.org/10.1103/physrevlett.119.187701

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