Review of performance metrics of spin qubits in gated semiconducting nanostructures

TL;DR

This review compiles and standardizes performance metrics of semiconductor spin qubits in nanostructures, facilitating comparison across different platforms by providing agreed definitions and curated literature values.

Contribution

It offers a comprehensive collection of key performance characteristics of spin qubits, establishing a community resource with standardized metrics for benchmarking.

Findings

Compiled values of coherence, speed, and fidelity for various spin qubits.

Provided standardized definitions for performance metrics.

Created a curated database for community benchmarking.

Abstract

This Technical Review collects values of selected performance characteristics of semiconductor spin qubits defined in electrically controlled nanostructures. The characteristics are envisioned to serve as a community source for the values of figures of merit with agreed-on definitions allowing the comparison of different spin qubit platforms. We include characteristics on the qubit coherence, speed, fidelity, and the qubit-size of multiqubit devices. The focus is on collecting and curating the values of these characteristics as reported in the literature, rather than on their motivation or significance.