Exact Nonequilibrium Transport in the Topological Kondo Effect

B. Béri*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


A leading candidate for the experimental confirmation of the nonlocal quantum dynamics of Majorana fermions is the topological Kondo effect, predicted for mesoscopic superconducting islands connected to metallic leads. We identify an anisotropic, Toulouse-like, limit of the topological Kondo problem where the full nonequilibrium conductance and shot noise can be calculated exactly. Near the Kondo fixed point, we find novel asymptotic features including a universal conductance scaling function and fractional charge quantization observable via the Fano factor. In the universal regime, our results apply for generic anisotropy and even away from the Kondo limit as long as the system supports an emergent topological Kondo fixed point. Our approach thus provides key new qualitative insights and exact expressions for quantitative comparisons to future experimental data.

Original languageEnglish
Article number027701
JournalPhysical Review Letters
Issue number2
Publication statusPublished - 14 Jul 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Exact Nonequilibrium Transport in the Topological Kondo Effect'. Together they form a unique fingerprint.

Cite this