 Masanori Ohya

Masanori Ohya (大矢 雅則 Ōya Masanori , born 1947) is a Japanese mathematician.
After he revieved a Ph.D. in Mathematical Physics and Information Science and Dr.Sc., he continuously worked on operator algebra, Quantum Entropy, quantum information theory and bioinformation. He achieved results in the fields of Quantum Information and mathematical physics. In particular, he introduced the quantum mutual entropy.^{[1]}
He also proposed Information Dynamics and Adaptive Dynamics, which enabled the study of Chaos theory, quantum information and bio sciences altogether.^{[clarification needed]}
Contents
Main research
Ohya studied multiple topics for more than thirty years, relating to quantum entropy, quantum information, chaos dynamics and life science. His main accomplishments are as follows: (1) Elucidation of Mathematical Bases of Quantum Channels, (2) Formulation of Quantum Mutual Information (Entropy), (3) Information Dynamics, (4) Analysis of Quantum Teleportation, (5) Quantum Algorithm, (6) Proposal of Adaptive Dynamics, (7) Life Science.
They are explained in the book Watanabe 2007.
Bibliography^{[2]}
Academic Appointments:
 1987–present Professor, Department of Information Sciences, Tokyo University of Science
 20042006 Dean, Graduate School of Science and Technology, Tokyo University of Science
 20022006 Committee, International Institute of Advanced Study in Kyoto
 2006 Dean, Science and Technology, Tokyo University of Science
Università di Roma II, Copernicus University, Jena University and many others.
Member of the Editorial Board of International Journals: (1) Infinite Dimensional Analysis, Quantum Probability and related topics; (2) Reports of Mathematical Physics; (3) Editorinchief of the Editorial Board of the journal "Open Systems and Information Dynamics"; (4) Amino Acid
Main articles
 T.Hara, K.Sato and M.Ohya (2010) MTRAP: Pairwise sequence alignment algorithm by a new measure based on transition probability between two consecutive pairs of residues, BMC bioinformatics, 11, 1, 235.
 W.A. Majewski, T.Matsuoka, and M.Ohya (2009) Characterization of partial positive transposition states and measures of entanglement, JOURNAL OF MATHEMATICAL PHYSICS, 50, 113509
 A.Kossakowski, M.Ohya (2006) Can NonMaximal Entangled State Achieve a Complete Quantum Teleportation?, Reconsideration of Foundation3, American Institute of Physics, 810, 211216.
 S.Iriyama, M.Ohya and I.V.Volovich (2006) Generalized Quantum Turing Machine and its Application to the SAT Chaos Algorithm, QPPQ:Quantum Prob. White Noise Anal., Quantum Information and Computing, 19, World Sci. Publishing, 204225.
 V.P.Belavkin and M.Ohya (2002) Quantum entanglement and entangled mutual entropy, Proceedings of the Royal Society of London, Vol. 458, 29231, 2002.
 KH.Fichtner and M.Ohya (2001) Quantum teleportation and beam splitting, Quantum teleportation with entangled states given by beam splittings, Commun. Math. Phys., Vol 225, 6789 and Vol 222, 229247.
 M.Ohya and N.Masuda (2000) NP problem in quantum algorithm, Open Systems and Information Dynamics, 7, No.1, 3339.
 L.Accardi and M.Ohya (1999) Compound channels, transition expectations, and liftings, Appl. Math. Optim., 39, 3359.
 M.Ohya (1998) Complexities and their applications to characterization of chaos, International Journal of Theoretical Physics, 37, No.1, 495505.
 M.Ohya (1989) Some aspects of quantum information theory and their applications to irreversible processes, Rep. Math. Phys., 27, 1947.
 M.Ohya (1984) Entropy Transmission in C*dynamical systems, J. Math. Anal.Appl., 100, No.1, 222235.
 M.Ohya (1983) On compound state and mutual information in quantum information theory, IEEE Trans. Information Theory, 29, No.5, 770774.
 F.Hiai, M.Ohya and M.Tsukada (1981) "Sufficiency, KMS condition and relative entropy in von Neumann algebras" and "Sufficiency and relative entropy in *algebras with applications in quantum systems", Pacific J. Math., 96, No.1, 99109 and 107, No.1, 117140.
 M.Ohya (1981) Quantum ergodic channels in operator algebras, J. Math. Anal. Appl. 84, No.2, 318327.
Books (English only)
 M.Ohya and D.Petz (1993) Quantum Entropy and its Use, SpringerVerlag, TMPseries.
 R.S.Ingarden, A.Kossakowski and M.Ohya (1997), Information Dynamics and Open Systems, Kluwer Academic Publishers.
 M.Ohya (1999), Mathematical foundation of quantum computer, MaruzenPubl.Company
References
 ^ Watanabe 2007, Introduction
 ^ Watanabe 2007, Curriculum Vitae
 Watanabe, Noboru (2007), Selected papers of M. Ohya, World Scientific Publishing Co. Pte. Ltd., ISBN 9812794190
External links
Categories: Japanese mathematicians
 20thcentury mathematicians
 21stcentury mathematicians
 1947 births
 Living people
Wikimedia Foundation. 2010.