Quantum effects are genuinely found in the world of nanostructures and allow a wide variety of new technological applications.

All over the world, researchers are engaged in intensive work on the individual components of quantum technologies - these include circuits that process information using single photons instead of electricity, as well as light sources producing such individual quanta of light.

Coupling these two components to produce integrated quantum optical circuits on chips presents a particular challenge.

Researchers at the University of Münster (Germany) have now developed an interface that couples light sources for single photons with nanophotonic networks.

This interface consists of so-called photonic crystals, i.e.

The researchers took particular care to achieve this feat in a way that allows for replicating the photonic crystals straightforwardly by using established nanofabrication processes.

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