Algebraic Results on Quantum Automata

Autor: Andris Ambainis, Arnolds Ķikusts, Denis Thérien, Martin Beaudry, Mark Mercer, Marats Golovkins
Rok vydání: 2004
Předmět:
Zdroj: Lecture Notes in Computer Science ISBN: 9783540212362
STACS
DOI: 10.1007/978-3-540-24749-4_9
Popis: We use tools from the algebraic theory of automata to investigate the class of languages recognized by two models of Quantum Finite Automata (QFA): Brodsky and Pippenger’s end-decisive model, and a new QFA model whose definition is motivated by implementations of quantum computers using nucleo-magnetic resonance (NMR). In particular, we are interested in the new model since nucleo-magnetic resonance was used to construct the most powerful physical quantum machine to date. We give a complete characterization of the languages recognized by the new model and by Boolean combinations of the Brodsky-Pippenger model. Our results show a striking similarity in the class of languages recognized by the end-decisive QFAs and the new model, even though these machines are very different on the surface.
Databáze: OpenAIRE