A note on threshold theorem of fault-tolerant quantum computation
Abstract
Error-correction process has to be carried out periodically to prevent accumulation of errors in fault-tolerant quantum computation. It is believed that the best choice to get maximum threshold value is carrying out an error-correction process after each quantum gate operation. Result of this note shows that the optimal error-correction period depends on the value of k which is the level number of concatenated quantum error-correction code.
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