Speaker: Széchenyi Gábor (Wigner FK SZFI)
Title: Semiconductor Spin Qubits
Date: Tuesday 19. October, 10:00
Place: KFKI Campus, Bldg. 1, Conference room
Abstract:
One of the promising approaches to building quantum computers is based on quantum dots defined in semiconductor materials, where the spin of a single electron or hole can serve as a qubit. The main advantages of these systems are their small size and compatibility with conventional semiconductor technologies. However, achieving precise and selective control of qubits, as well as reliable readout, remains a significant challenge.
In this talk, I will briefly introduce the basic concepts and main challenges of semiconductor-based quantum computing, followed by an overview of our theoretical research on the electrical control of spin qubits. I will focus on bichromatic driving, which uses electric fields oscillating at two different frequencies and offers new possibilities for selective and parallel qubit manipulation. I will discuss the experimental demonstration of our theoretical predictions in germanium-based spin qubits and explain how our results may contribute to the development of larger-scale quantum processors.
