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arXiv · 1101.1053

An Improved Query for the Hidden Subgroup Problem

Asif Shakeel
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Abstract

An equal superposition query with |0> in the response register is used in the "standard method" of single-query algorithms for the hidden subgroup problem (HSP). Here we introduce a different query, the character query, generalizing the well-known phase kickback trick. This query maximizes the success probability of subgroup identification under a uniform prior, for the HSP in which the oracle functions take values in a finite abelian group. We then apply our results to the case when the subgroups are drawn from a set of conjugate subgroups and obtain a success probability greater than that found by Moore and Russell.

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Asif Shakeel. 2012-03-21. An Improved Query for the Hidden Subgroup Problem. https://arxiv.org/abs/1101.1053

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