A perspective on semiconductor-based superconducting qubits

TL;DR

This paper reviews recent advances in semiconductor-based superconducting qubits, highlighting new designs like transmon, Andreev, and topological qubits, emphasizing progress in semiconductor nanowire systems.

Contribution

It provides a comprehensive overview of the development and potential of semiconductor-superconductor hybrid qubits, focusing on recent experimental progress and future directions.

Findings

Semiconductor Josephson junctions enable fully tunable qubits.

Progress in semiconductor nanowire-based superconducting qubits has been significant.

Potential for fault-tolerant topological qubits using Majorana modes.

Abstract

Following the demonstration of semiconductor-based Josephson junctions which are fully tuneable by electrical means, new routes have been opened for the study of hybrid semiconductor-superconductor qubits. These include semiconductor-based transmon qubits, single-spin Andreev qubits, and fault-tolerant topological qubits based on Majorana zero modes. In this perspective, we review recent progress in the path towards such novel qubit designs. After a short introduction and a brief digression about the historical roadmap that has led to the experimental state-of-the art, the emphasis is placed on superconducting qubits based on semiconductor nanowires