  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.
