Abstract
The concept of sequential quantum machine (SQM) was firstly introduced by Gudder. Qiu further investigated some properties of SQMs and introduced the concept of quantum sequential machine (QSM) which was an equivalent version of SQM. A uninitialized sequential quantum machine (USQM) is a sequential quantum machine which has no initialized state. The main purpose of this paper is to investigate three coverings of products of USQMs: covering, probability covering and weak probability covering. More specifically, we firstly introduce the concepts of products of USQMs and study properties of these products. Secondly, we introduce the concept of covering of USQMs, and study covering properties of products of USQMs. Finally, we introduce the concepts of probability cove- ring and weak probability covering of USQMs, and study properties of these coverings of products.
Similar content being viewed by others
References
Benioff, P.: The computer as a physical system: a microscopic quantum mechanical Hamiltonian model of computers as represented by Turing machines. J. Stat. Phys. 22, 563–591 (1980)
Feynman, R.P.: Simulating physics with computers. J. Stat. Phys. 21, 467–488 (1982)
Deutsh, D.: Quantum theory, the Church-Turing principle and the universal quantum computer. Proc. R. Soc. Lond. A 400, 97–117 (1985)
Shor, P.W.: Polynomial-time algorithms for prime factorization and discrete logarithms on a quantum computer. SIAM J. Comput. 26, 1484–1509 (1997)
Grover, L.: Quantum mechanics helps in searching for a needle in a haystack. Phys. Rev. Lett. 79, 326–328 (1997)
Moore, C., Crutchfield, J.P.: Quantum automata and quantum grammars. Theor. Comput. Sci. 237, 275–306 (2000)
Gudder, S.: Quantum computers. Int. J. Theor. Phys. 39, 2151–2177 (2000)
Qiu, D.W.: Quantum pushdown automata. Int. J. Theor. Phys. 41, 1627–1639 (2002)
Qiu, D.W., Ying, M.S.: Characterizations of quantum automata. Theor. Comput. Sci. 312, 479–489 (2004)
Qiu, D.W.: Automata theory based on quantum logic: some characterizations. Inf. Comput. 190, 179–195 (2004)
Qiu, D.W.: Automata theory based on quantum logic: reversibilities and pushdown automata. Theor. Comput. Sci. 386, 38–56 (2007)
Ying, M.S.: Automata theory based on quantum logic i. Int. J. Theor. Phys. 39, 985–995 (2000)
Ying, M.S.: Automata theory based on quantum logic ii. Int. J. Theor. Phys. 39, 2545–2557 (2000)
Qiu, D.W.: Characterization of sequential quantum machines. Int. J. Theor. Phys. 41, 811–822 (2002)
Li, L.Z., Qiu, D. W.: Determination of equivalence between quantum sequential machines. Theor. Comput. Sci. 358, 65–74 (2006)
Li, L.Z., Qiu, D.W.: A note on quantum sequential machines. Theor. Comput. Sci. 410, 2529–2535 (2009)
Li, L.Z., Qiu, D.W.: Determining the equivalence for one-way quantum finite automata. Theor. Comput. Sci. 403, 42–51 (2008)
Zheng, S.G., Li, L.Z., Qiu, D.W.: Two-tape finite automata with quantum and classical states. Int. J. Theor. Phys. 50, 1262–1281 (2011)
Zheng, S.G., Qiu, D.W., Gruska, J., Li, L.Z., Mateus, P.: State succinctness of two-way finite automata with quantum and classical states. Theor. Comput. Sci. 499, 98–112 (2013)
Qiu, D.W., Yu, S.: Hierarchy and equivalence of multi-letter quantum finite automata. Theor. Comput. Sci. 410, 3006–3017 (2009)
Qiu, D.W., Li, L.Z., Zou, X.F., Mateus, P., Gruska, J.: Multi-letter quantum finite automata: decidability of the equivalence and minimization of states. Acta Inform. 48, 271–290 (2011)
Zheng, S.G., Gruska, J., Qiu, D.W.: On the state complexity of semi-quantum finite automata. Theor. Inf. Appl. 48, 187–207 (2014)
Zheng, S.G., Qiu, D.W., Gruska, J.: Power of the interactive proof systems with verifiers modeled by semi-quantum two-way finite automata. Inf. Comput. 241, 197–214 (2015)
Gruska, J., Qiu, D.W., Zheng, S.G.: Generalizations of the distributed Deutsch-Jozsa promise problem. Math. Struct. Comput. Sci. 27, 311–331 (2017)
Zheng, S.G., Li, L.Z., Qiu, D.W., Gruska, J.: Promise problems solved by quantum and classical finite automata. Theor. Comput. Sci. 666, 48–64 (2017)
Qiu, D.W., Li, L.Z.: An overview of quantum computation models: quantum automata. Frontiers Comput. Sci. China 2, 193–207 (2008)
Mereghetti, C., Palano, B.: Quantum finite automata with control language. RAIRO-Theoretical Informatics and Applications. 40(2), 315–332 (2006)
Ambainis, A., Watrous, J.: Two-way finite automata with quantum and classical states. Theor. Comput. Sci. 287(1), 299–311 (2002)
Ambainis, A., Yakaryilmaz, A.: Automata and quantum computing. Comput. Sci. 67(5), 125–128 (2015). arXiv:1507.01988v2
Huang, F.D., Xie, Zh.W., Deng, Z.X., Yang, J.K.: Algebraic properties of uninitialized sequential quantum machines. Chin. J. Eng. Math. 34, 262–282 (2017)
Malik, D.S., Mordeson, J.N., Sen, M.K.: Products of fuzzy finite state machines. Fuzzy Set. Syst. 92, 95–102 (1997)
Kumbhojkar, H.V., Chaudhari, S.R.: On covering of products of fuzzy finite state machines. Fuzzy Set. Syst. 125, 215–222 (2002)
Maler, O.: A decomposition theorem for probabilistic transition systems. Theor. Comput. Sci. 145, 391–396 (1995)
Paz, A.: Introduction to Probabilistic Automata. Academic Press, New York (1971)
Horn, R. A., Johnson, C.R.: Topics of matrix analysis, vol. 239-248. Cambridge University Press, Cambridge (1991)
Acknowledgments
This research is supported by the Science and Technology Cooperation Project of Guizhou Province under the Grant NO. LH [2016]7062.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Huang, F. On Coverings of Products of Uninitialized Sequential Quantum Machines. Int J Theor Phys 58, 1418–1440 (2019). https://doi.org/10.1007/s10773-019-04031-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10773-019-04031-9