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Ambainis-Freivalds’ algorithm for measure-once automata
University of Latvia, Latvia.
Mälardalens högskola, Institutionen för matematik och fysik.
2001 (engelsk)Inngår i: Fundamentals of Computation Theory: 13th International Symposium, FCT 2001 Riga, Latvia, August 22–24, 2001 Proceedings, 2001, Vol. 2183, s. 83-93Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

An algorithm given by Ambainis and Freivalds [1] constructs a quantum finite automaton (QFA) withO(logp) states recognizing the language L p = a i |i is divisible by p with probability 1 − ε, for any ε > 0 and arbitrary prime p. In [4] we gave examples showing that the algorithm is applicable also to quantum automata of very limited size. However, the Ambainis-Freivalds algoritm is tailored to constructing a measure-many QFA (defined by Kondacs and Watrous [2]), which cannot be implemented on existing quantum computers. In this paper we modify the algorithm to construct ameasure-once QFA of Moore and Crutchfield [3] and give examples of parameters for this automaton. We show for the language L p that a measure-once QFA can be twice as space efficient as measure-many QFA’s.

sted, utgiver, år, opplag, sider
2001. Vol. 2183, s. 83-93
Serie
Lecture Notes in Computer Science, ISSN 0302-9743 ; 2183
HSV kategori
Identifikatorer
URN: urn:nbn:se:mdh:diva-2978DOI: 10.1007/3-540-44669-9_10Scopus ID: 2-s2.0-84974678253ISBN: 978-3-540-42487-1 (tryckt)OAI: oai:DiVA.org:mdh-2978DiVA, id: diva2:115642
Konferanse
13th International Symposium, FCT 2001 Riga, Latvia, August 22–24, 2001
Tilgjengelig fra: 2008-03-08 Laget: 2008-03-08 Sist oppdatert: 2016-06-30bibliografisk kontrollert

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