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The cover depicts an image of bright single photons emitted from gallium nitride. This illustrates a potential quantum nanoelectronic circuit that uses single photons for information transfer, as described in article number 1605092 by Dirk Englund and Igor Aharonovich.
Room‐temperature quantum emitters in gallium nitride (GaN) are reported. The emitters originate from cubic inclusions in hexagonal lattice and exhibit narrowband luminescence in the red spectral range. The sources are found in different GaN substrates, and therefore are promising for scalable quantum technologies.
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