In the present day there is only one commercial application of quantum
information processing (QIP), quantum key distribution, and the market
embracing it is small. The development of further applications requires the
realisation of a suite of practical devices that are able to create, buffer,
process and repeat quantum information. Semiconductor structures have
dominated digital information’s history, as their ease of use and scalability
are both ideal in meeting market demands. In the Quantum Technology
Centre at Lancaster University we are developing semiconductor devices
for practical applications of QIP, and in this talk I will discuss our progress.