Semiconductor-based electron flying qubits: review on recent progress accelerated by numerical modelling

The progress of charge manipulation in semiconductor-based nanoscale devices opened up a novel route to realise flying qubit with single electron. In the present review, we introduce concept these electron qubits, discuss their most promising realisations and show how numerical simulations are applicable accelerate experimental development cycles. Addressing technological challenges qubits that currently faced by academia quantum enterprises, underline relevance interdisciplinary cooperation move emerging industry forward. review consists two main sections: Pathways towards qubit: We address three routes single-electron transport GaAs-based focusing on surface acoustic waves, hot-electron emission from dot pumps Levitons. For each approach, latest results point out facilitate engineering qubit. Numerical modelling devices: full stack needed for fabrication qubits. Choosing appropriate models, examples basic mechanical explained detail. applications open-source (KWANT) commercial (nextnano) platforms discussion points large software tools design tailored efficient operation.