Today’s most advanced quantum computer prototypes, based on superconducting circuits and trapped ions or atoms, consist of a few hundred quantum bits and feature logical operations with precision above 99%. In this talk, I will describe an alternative architecture for quantum computing, which is based on the semiconductor technology that enables most of our (classical) information technology today. In the semiconductor quantum computing architecture, each qubit is realized by the spin of a single electron. I will discuss how to initialize, control, and read out these qubits, the difficulties in building and operating such a device, as well as the experimental state of the art and the most exciting contemporary research directions.

Website of the Szilárd Colloquium: https://physics.bme.hu/kollokvium?language=hu