Title
An Efficient Quantum Algorithm for the Hidden Subgroup Problem in Nil-2 Groups
Abstract
In this paper we show that the hidden subgroup problem in nil-2 groups, that is in groups of nilpotency class at most 2, can be solved efficiently by a quantum procedure. The algorithm is an extension of our earlier method for extraspecial groups in Ivanyos et al. (Proceedings of the 24th Symposium on Theoretical Aspects of Computer Science (STACS), vol. 4393, pp. 586–597, 2007), but it has several additional features. It contains a powerful classical reduction for the hidden subgroup problem in nilpotent groups of constant nilpotency class to the specific case where the group is a p-group of exponent p and the subgroup is either trivial or cyclic. This reduction might also be useful for dealing with groups of higher nilpotency class. The quantum part of the algorithm uses well chosen group actions based on some automorphisms of nil-2 groups. The right choice of the actions requires the solution of a system of quadratic and linear equations. The existence of a solution is guaranteed by the Chevalley-Warning theorem, and we prove that it can also be found efficiently.
Year
DOI
Venue
2012
10.1007/978-3-540-78773-0_65
Latin American Theoretical INformatics
Keywords
Field
DocType
powerful classical reduction,nil-2 group,efficient quantum algorithm,extraspecial group,group action,nilpotent group,nilpotency class,constant nilpotency class,higher nilpotency class,quantum part,hidden subgroup problem,quantum algorithm,quantum physics,linear equations
Discrete mathematics,Combinatorics,Central series,Nilpotent group,Hidden subgroup problem,p-group,Fitting subgroup,Solvable group,Quantum algorithm,Mathematics,Normal subgroup
Journal
Volume
Issue
ISSN
62
1-2
1432-0541
ISBN
Citations 
PageRank 
3-540-78772-0
6
0.47
References 
Authors
21
3
Name
Order
Citations
PageRank
Gábor Ivanyos125728.02
Luc Sanselme2130.98
Miklos Santha372892.42