Dynamics of Majorana-based qubits operated with an array of tunable gates
Abstract
We study the dynamics of Majorana zero modes that are shuttled via local tuning of the electrochemical potential in a superconducting wire. By performing time-dependent simulations of microscopic lattice models, we show that diabatic corrections associated with the moving Majorana modes are quantitatively captured by a simple Landau-Zener description. We further simulate a Rabi-oscillation protocol in a specific qubit design with four Majorana zero modes in a single wire and quantify constraints on the timescales for performing qubit operations in this setup. Our simulations utilize a Majorana representation of the system, which greatly simplifies simulations of superconductors at the mean-field level.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 19, 2018
- Source ID
- 10.21468/scipostphys.5.1.004
Entities
People
- Andrey E Antipov
- Bela Bauer
- Jason Alicea
- Ryan Mishmash
- Torsten Karzig
Organizations
- Army Research Office
- California Institute of Technology
- Gordon and Betty Moore Foundation
- Microsoft
- National Science Foundation