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1	Coherence protection by random coding. Brion, E., Akulin, V.M., Dumer, I., Harel, Gil, Kurizki, G. January 2005 (has links) No / We show that the multidimensional Zeno effect combined with non-holonomic control allows one to efficiently protect quantum systems from decoherence by a method similar to classical random coding. The method is applicable to arbitrary error-inducing Hamiltonians and general quantum systems. The quantum encoding approaches the Hamming upper bound for large dimension increases. Applicability of the method is demonstrated with a seven-qubit toy computer. Coherent control, Complex systems Error correction Non-holonomic control, Random coding Quantum computation Quantum information Quantum mechanics Decoherence Zeno effect
2	Extremal Problems of Error Exponents and Capacity of Duplication Channels Ramezani, Mahdi Unknown Date No description available. information theory channels with synchronization errors duplication channels error exponents channel reliability function insertion/deletion channels random-coding error exponent set of basis channels capacity expansion Chebychev systems channel dispersion symmetric channels binary symmetric channel (BSC) binary erasure channel (BEC) T-systems