Robustness of optimal probabilistic storage and retrieval of unitary channels to noise

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.

8 pages, 7 figures, accepted in PRA

References in corpus (3)

• Quantum Circuits Architecture
• Quantum information cannot be completely hidden in correlations: implications for the black-hole information paradox
• Probabilistic storage and retrieval of qubit phase gates

Cited by in corpus (1)

• Quantum Advantage in Storage and Retrieval of Isometry Channels