Raymond Wu, Jie Lu
ITA Conference 2007
In this correspondence, we study quantum communication in the presence of adversarial noise. In this setting, communicating with perfect fidelity requires a quantum code of bounded minimum distance, for which the best known rates are given by the quantum Gilbert-Varshamov (QGV) bound. Asking only for arbitrarily high fidelity and letting the sender and reciever use a secret key of length logarithmic in the number of qubits sent, we find a dramatic improvement over the QGV rates. In fact, our protocols allow high fidelity transmission at noise levels for which perfect fidelity is impossible. To achieve such rates, we introduce fully quantum list codes, which may be of independent interest. © 2008 IEEE.
Raymond Wu, Jie Lu
ITA Conference 2007
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