Parity-preserving and magnetic field–resilient superconductivity in InSb nanowires with Sn shells
Abstract
Some of the most promising schemes for quantum information processing involve superconductors. In addition to the established superconducting qubits, topological qubits may one day be realized in semiconductor-superconductor heterostructures. The superconductor most widely used in this context is aluminum, in which processes that cause decoherence are suppressed. Pendharkar et al. go beyond this paradigm to show that superconducting tin can be used in place of aluminum (see the Perspective by Fatemi and Devoret). The authors grew nanowires of indium antimonide, which is a semiconductor, and coated them with a thin layer of tin without using cumbersome epitaxial growth techniques. This process creates a well-defined, “hard” superconducting gap in the nanowires, which is a prerequisite for using them as the basis for a potential topological qubit.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 30, 2021
- Source ID
- 10.1126/science.aba5211
Entities
People
- An‐Hsi Chen
- Azarin Zarassi
- Bomin Zhang
- Chris J. Palmstrøm
- Connor P. Dempsey
- E. P. A. M. Bakkers
- Ghada Badawy
- Hao Wu
- Jason Jung
- Joon Sue Lee
- Marcel A Verheijen
- Marco Rossi
- Mihir Pendharkar
- Moïra Hocevar
- Po Zhang
- Roy L. M. Op het Veld
- Sasa Gazibegovic
- Sean Harrington
- Sergey M Frolov
Organizations
- Agence Nationale de la Recherche
- Army Research Office
- Dutch Research Council
- Eindhoven University of Technology
- European Research Council
- Grenoble Alpes University
- Microsoft Research
- Ministry of Economic Affairs and Employment
- National Science Foundation
- Office of Naval Research
- University of California
- University of Pittsburgh