Scientists have developed a tool that allows them to measure 27 dimensional states, which they say is key to high security quantum communications systems.
Previously, researchers at the University of Rochester had used a multistage process involving quantum tomography, which is similar to creating a 3D image from 2D ones.
However, the team have now applied a method called direct measurement to measure dimensions, a recently developed system that can be carried out in a single experiment with no post-processing.
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