Oxana Shaya

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Standard quantum capacity treats encoding and decoding as freely available, leaving their resource requirements unaccounted for. Motivated by the coherence requirements of quantum error correction and heterogeneous quantum networks, we study quantum channel capacities under the restriction that the encoder and decoder can be incoherent. Our main result is an exact, surprisingly single-letter characterization of the quantum capacity with incoherent encoding and unrestricted decoding, valid for arbitrary quantum channels.
This work is joint with Zahra Khanian.

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Leibniz University Hannover
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Contact: Markus Heinrich