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\nRecorded\n06 September 2012\nin Lausanne, Vaud, Switzerland\n<\/p>\n
\nEvent:<\/b>\nITW2012<\/a>\n- Information Theory Workshop 2012\n<\/p>\n A basic task studied in quantum information theory is the (nearly) error-free transmission of quantum information over a noisy quantum channel. Using a randomized encoding scheme, it is possible to transmit information at a rate given by the so-called coherent information. However, such a randomized scheme does not allow for efficient encoding and decoding. In this talk, I show that the notion of polar codes, as introduced recently by Arikan for classical channel coding, can be used to construct a novel coding scheme for a class of quantum channels with one-qubit inputs (which are essentially quantum versions of bit flip and erasure channels). The scheme reaches a rate arbitrarily close to the coherent information, with efficient algorithms for encoding and decoding.<\/p>\n\n<\/div>\n Watched 914 times.<\/p>\n<\/i> Watch<\/a>\n<\/div>\n<\/div>\n<\/div>\n');
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Abstract<\/h4>\n