Layered semiconductor unlocks magnetic control of light emitted by quantum condensates

Quantum technologies are seen as future key tools, but they need both scientific skill and very special lab conditions. One example is Bose–Einstein condensates, where atoms move together and show quantum effects on a large scale. These condensates were first seen in ultracold gases near absolute zero, a cooling process that is technically demanding, expensive, and limited to specialized laboratories.

Quantum technologies are considered key technologies of the future. However, research in this field requires not only scientific expertise but sometimes also highly specialized laboratory conditions. Bose–Einstein condensates are a remarkable example, in which atoms move in lockstep, making quantum-mechanical effects visible not only at the level of individual atoms but also on a macroscopic scale. The first Bose–Einstein condensates were observed in ultracold atomic gases at temperatures close to absolute zero. The cooling required to achieve this was technically demanding, costly and restricted to specialized laboratories.

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