Matches in SemOpenAlex for { <https://semopenalex.org/work/W2013231630> ?p ?o ?g. }
- W2013231630 abstract "We consider an interacting nanowire/superconductor heterostructure attached to metallic leads. The device is described by an unusual low-energy model involving spin-1 conduction electrons coupled to a nonlocal spin-$frac{1}{2}$ Kondo impurity built from Majorana fermions. The topological origin of the resulting Kondo effect is manifest in distinctive non-Fermi-liquid (NFL) behavior, and the existence of Majorana fermions in the device is demonstrated unambiguously by distinctive conductance line shapes. We study the physics of the model in detail, using the numerical renormalization group, perturbative scaling, and Abelian bosonization. In particular, we calculate the full scaling curves for the differential conductance in ac and dc fields, onto which experimental data should collapse. Scattering $t$ matrices and thermodynamic quantities are also calculated, recovering asymptotes from conformal field theory. We show that the NFL physics is robust to asymmetric Majorana-lead couplings, and here we uncover a duality between strong and weak coupling. The NFL behavior is understood physically in terms of competing Kondo effects. The resulting frustration is relieved by inter-Majorana coupling which generates a second crossover to a regular Fermi liquid." @default.
- W2013231630 created "2016-06-24" @default.
- W2013231630 creator A5008870952 @default.
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- W2013231630 date "2014-01-31" @default.
- W2013231630 modified "2023-10-10" @default.
- W2013231630 title "Conductance fingerprint of Majorana fermions in the topological Kondo effect" @default.
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- W2013231630 doi "https://doi.org/10.1103/physrevb.89.045143" @default.
- W2013231630 hasPublicationYear "2014" @default.
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