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Deleting a marked item from an unsorted database with a single query

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 نشر من قبل Gui Lu Long
 تاريخ النشر 2007
  مجال البحث فيزياء
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In this Letter we present a quantum deletion algorithm that deletes a marked state from an unsorted database of $N$ items with only a single query. This algorithm achieves exponential speedup compared with classical algorithm where O(N) number of query is required. General property of this deleting algorithm is also studied.

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