Robustness of optimal probabilistic storage and retrieval of unitary channels to noise
arXiv:2211.07079 · doi:10.1103/PhysRevA.106.052416
Abstract
We investigate robustness of probabilistic storage and retrieval device optimized for phase gates to noise. We use noisy input composed of convex combination of unitary channel with either depolarizing or dephasing channel. We find out that the resistance to dephasing noise is higher than to depolarization. Interestingly, for the depolarisation the retrieval reduces the degree of noise. We also examine the possible realizations showing that their performance is different when the noise is present.
arXiv comment8 pages, 7 figures, accepted in PRA
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