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Bounds on achievable rates of sparse quantum codes used over the quantum erasure channel

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Bounds on achievable rates of sparse quantum codes used over the quantum erasure channel
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48
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CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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We study the performance of locally decodable sparse quantum codes. The most familiar example of such a code is Kitaev’s toric code. During the last ten years, a number of different constructions of these codes appeared, for example: surfaces codes, finite geometry codes or Latin square codes. These codes are defined by stabilizer group with generators of low weight. If the stabilizer matrix has row weight m and column weight l, we talk about a (l,m) code. Our main result is an upper bound on achievable rates of stabilizer (l,m) codes, as a function of m and l. Achievable rates are rates for which decoding is possible with high probability.