We present a novel approach that generalizes the well- known quantum SWAP gate to higher dimensions and construct a regular quantum gate composed entirely in terms of the generalized CNOT gate that cyclically permutes the states of $$d$$ d qudits for $$d$$ d prime. We also investigate the case for $$d$$ d other than prime. A key feature of the construction design relates to the periodicity evaluation for a family of linear recurrences which we achieve by exploiting generating functions and their factorization over the complex reals.
Quantum Information Processing – Springer Journals
Published: Mar 19, 2014
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