ELFT HÍRADÓ

[Szeminárium koordinátor <pusztai.tamas AT wigner.hun-ren.hu>]

SZFI SeminarGábor SzéchenyiHUN-REN Wigner RCP SZFISemiconductor Spin 
QubitsTuesday, 20 October 2026, 10:00, KFKI Campus, Bldg. 1, 2nd floor, 
Conference RoomOne 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. Minden érdeklődőt szívesen látunk! - Everyone is welcome to 
attend.Tamás Pusztaipusztai.tamas AT wigner.hun-ren.hu