Higher-dimensional orbital-angular-momentum-based quantum key distribution with mutually unbiased bases
Higher-dimensional orbital-angular-momentum-based quantum key distribution with mutually unbiased bases
We present an experimental study of higher-dimensional quantum key distribution protocols based on mutually unbiased bases, implemented by means of photons carrying orbital angular momentum. We perform ($d+1$) mutually unbiased measurements in a classically simulated prepare-and-measure scheme and on a pair of entangled photons for dimensions ranging from $d=2$ to …