MQV-Insights: How to connect ultracold qubits to the outside world

How do you control the qubits of a superconducting quantum computer – which like it freezing cold at around -273 degrees Celsius – without disturbing these sensitive computing units? And how do you generate these freezing temperatures? All this and more, you can find out on 26 May 2025 at the Fraunhofer Institute for Electronic Microsystems and Solid State Technologies.

Register from 3/26/25

Due to limited capacity on site, we are unfortunately unable to offer a lab tour to all visitors to the lecture. We have therefore prepared registrations WITH and WITHOUT a lab tour.

Superconducting quantum computers are extremely cool - in the literal sense of the word: their computing units, the superconducting qubits, only reach their peak performance at frosty temperatures of around -273 degrees Celsius. The more of these qubits you put into a quantum computer, the more powerful it becomes. In this lecture, researchers from the Fraunhofer Institute for Electronic Microsystems and Solid State Technologies EMFT will provide exciting insights into research work in the millikelvin range. They will explain how a cryostat works and present one of their most promising developments: foil-based superconducting cables for controlling and reading qubits. This allows extremely high line densities to be realized, which is of crucial importance for the scaling of quantum computers and their future applications. Afterwards, there will be an opportunity to visit the cryo lab, which houses the cryostat used by the researchers to generate cold temperatures.

• The lecture at the Fraunhofer EMFT begins at 5:30 pm and ends at around 6:15 pm.
• The subsequent tour of the cryo lab ends at around 19:00.