2012/06/30 by R. Hützen, Alex Zazunov, A. Zazunov +5 · 97 citations
Materials Science · Physics and Astronomy · #Andreev reflection #Charge (physics) #Condensed matter physics #Conductance #Cooper pair #Coulomb #Coulomb blockade #Electron #Graphene research and applications #MAJORANA #Physics #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Superconductivity #Topological Materials and Phenomena #Transistor #Voltage #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.109.166403
published in Physical Review Letters 109(16), 166403 (American Physical Society) · 6 pages, 5 figures, published version
openalex publication_date 2012/10/16 · arxiv created 2012/10/23 · arxiv updated 2015/06/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study transport through a Coulomb blockaded topologically nontrivial superconducting wire (with Majorana end states) contacted by metallic leads. An exact formula for the current through this interacting Majorana single-charge transistor is derived in terms of wire spectral functions. A comprehensive picture follows from three different approaches. We find Coulomb oscillations with universal halving of the finite-temperature peak conductance under strong blockade conditions, where the valley conductance mainly comes from elastic cotunneling. The nonlinear conductance exhibits finite-voltage sidebands due to anomalous tunneling involving Cooper pair splitting.