"uuid","repository link","title","author","contributor","publication year","abstract","subject topic","language","publication type","publisher","isbn","issn","patent","patent status","bibliographic note","access restriction","embargo date","faculty","department","research group","programme","project","coordinates" "uuid:f4e3eb5b-6c8b-43a8-8b9d-80d213984aa8","http://resolver.tudelft.nl/uuid:f4e3eb5b-6c8b-43a8-8b9d-80d213984aa8","Quantized Majorana conductance","Zhang, H. (TU Delft QRD/Kouwenhoven Lab); Liu, Chun Xiao (University of Maryland); Gazibegovic, S. (TU Delft QRD/Kouwenhoven Lab; Eindhoven University of Technology); Xu, D. (TU Delft QRD/Kouwenhoven Lab); Logan, John A. (University of California); Wang, Guanzhong (TU Delft QRD/Kouwenhoven Lab); van Loo, N. (TU Delft Applied Sciences); Bommer, J.D.S. (TU Delft QRD/Kouwenhoven Lab); de Moor, M.W.A. (TU Delft QRD/Kouwenhoven Lab); Car, D. (TU Delft QRD/Kouwenhoven Lab; Eindhoven University of Technology); op het Veld, R.L.M. (TU Delft QRD/Kouwenhoven Lab; Eindhoven University of Technology); Van Veldhoven, Petrus J. (Eindhoven University of Technology); Kölling, S. (TU Delft QRD/Kouwenhoven Lab; Eindhoven University of Technology); Verheijen, M.P.A.M. (TU Delft Integral Design & Management; Eindhoven University of Technology; Philips Research); Pendharkar, Mihir (University of California); Pennachio, Daniel J. (University of California); Shojaei, Borzoyeh (University of California); Lee, Joon Sue (University of California); Palmstrøm, Chris J. (University of California); Bakkers, E.P.A.M. (TU Delft QN/Bakkers Lab; Eindhoven University of Technology); Sarma, S. Das (University of Maryland); Kouwenhoven, Leo P. (TU Delft QRD/Kouwenhoven Lab; Microsoft Quantum Lab Delft)","","2018","Majorana zero-modes - a type of localized quasiparticle - hold great promise for topological quantum computing. Tunnelling spectroscopy in electrical transport is the primary tool for identifying the presence of Majorana zero-modes, for instance as a zero-bias peak in differential conductance. The height of the Majorana zero-bias peak is predicted to be quantized at the universal conductance value of 2e 2 /h at zero temperature (where e is the charge of an electron and h is the Planck constant), as a direct consequence of the famous Majorana symmetry in which a particle is its own antiparticle. The Majorana symmetry protects the quantization against disorder, interactions and variations in the tunnel coupling. Previous experiments, however, have mostly shown zero-bias peaks much smaller than 2e 2 /h, with a recent observation of a peak height close to 2e 2 /h. Here we report a quantized conductance plateau at 2e 2 /h in the zero-bias conductance measured in indium antimonide semiconductor nanowires covered with an aluminium superconducting shell. The height of our zero-bias peak remains constant despite changing parameters such as the magnetic field and tunnel coupling, indicating that it is a quantized conductance plateau. We distinguish this quantized Majorana peak from possible non-Majorana origins by investigating its robustness to electric and magnetic fields as well as its temperature dependence. The observation of a quantized conductance plateau strongly supports the existence of Majorana zero-modes in the system, consequently paving the way for future braiding experiments that could lead to topological quantum computing.","Electronic properties and materials; Nanowires; Superconducting properties and materials","en","journal article","","","","","","Accepted Author Manuscript This title has a addendum: editorial expression of concern, see Relations below","","2018-09-28","Applied Sciences","","QRD/Kouwenhoven Lab","","",""