High-visibility quantum interference between two independent semiconductor quantum dots achieved

https://phys.org/news/2022-12-high-visibility-quantum-independent-semiconductor-dots.html

"low-noise tunable single-photon frequency conversion with low-dispersion long fiber transmission... single photons generated from resonantly driven single QDs deterministically coupled to microcavities... eliminate QD inhomogeneity; shift emission wavelength to telecommunications band... interference visibility 93%.... extend distance to ~600 km... jumped from the previous QD-based quantum experiments two orders of magnitude larger... solid-state quantum networks"