WINQ Seminar - Gorm Steffensen - Quantum dot based Andreev qubits - Combining semiconductors with cQED

Tuesday 18 Nov 2025, 14:00 → 15:00 Europe/Stockholm

Albano 3: 6228 - Mega (22 seats) (Albano Building 3)

 

The two most promising on-chip qubit platforms are superconducting qubits and spin qubits, based respectively on cQED and gated semiconductor quantum dots. These platforms each have a set of hardware determined pros and cons. In this talk I will address how combining the platforms into semi-superconducting hybrids opens new avenues for qubit design, and how one might share the pros and overcome the cons between the two platforms. Specifically, I will discuss the development of Andreev qubits - how they work and what they can - that exploit inductive coupling to cQED elements. Lastly, I will explain my own proposal of a magnetically protected semi-superconducting Yu-Shiba-Rusinov qubit.