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math.CO2018
Complex Hadamard matrices attached to a 3-class nonsymmetric association scheme
Takuya Ikuta, Akihiro Munemasa
In this paper we classify complex Hadamard matrices contained in the Bose-Mesner algebra of nonsymmetric 3-class association schemes. As a consequence of our classification, we hav…
quant-ph2018★ 44 cited
Four-dimensional entanglement distribution over 100 km
Takuya Ikuta, Hiroki Takesue
High-dimensional quantum entanglement can enrich the functionality of quantum information processing. For example, it can enhance the channel capacity for linear optic superdense c…