Asymptotic theory of quantum statistical inference by Masahito Hayashi

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By Masahito Hayashi

Quantum statistical inference, a study box with deep roots within the foundations of either quantum physics and mathematical records, has made outstanding growth when you consider that 1990. specifically, its asymptotic idea has been constructed in this interval. notwithstanding, there has hitherto been no booklet masking this striking development after 1990; the well-known textbooks by way of Holevo and Helstrom deal merely with study leads to the sooner degree (1960s-1970s). This e-book offers the real and up to date result of quantum statistical inference. It makes a speciality of the asymptotic idea, that is one of many critical problems with mathematical facts and had now not been investigated in quantum statistical inference till the early Eighties. It includes striking papers after Holevo's textbook, a few of that are of serious value yet aren't to be had now. The reader is anticipated to have basically trouble-free mathematical wisdom, and hence a lot of the content material could be obtainable to graduate scholars in addition to examine staff in similar fields. Introductions to quantum statistical inference were especially written for the publication. Asymptotic conception of Quantum Statistical Inference: chosen Papers will provide the reader a brand new perception into physics and statistical inference.

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Blahut, Principles and practice of information theory, Reading, Addison-Wesley, MA, 1987. [4] I. Csisz´ ar, “Information type measures of difference of probability distributions and indirect observations,” Studia Sci. Math. , 2, 299–318, 1967. [5] A. Dembo and O. Zeitouni, Large deviation techniques and applications, Jones and Bartlett, Boston, 1993. W. Helstrom, Quantum detection and estimation theory, Academic Press, New York, 1976. S. Han and K. Kobayashi, “The strong converse theorem for hypothesis testing,” IEEE Trans.

1971. However, as Holevo pointed out to him, the first proof is invalid in the infinite-dimensional case. It was corrected in Yuen, Kennedy, and Lax [I-14]. †† The definition of asymptotic weak orthogonality is seemingly different from the original one. But, they are essentially equivalent. entire December 28, 2004 13:56 WSPC / Master file for review volume with part divider — 9in x 6in Introduction to Part I 24 be regarded as their characterizations from the viewpoint of asymptotic weak/strong orthogonality.

In commutative (or classical) probability theory the states correspond to measures on a measurable space. When ν = (ν1 , ν2 , . . , νn ) and µ = (µ1 , µ2 , . . , µn ) are probability distributions, for the sake of simplicity, on an n-point space, the relative entropy (called also information divergence) introduced by Kullback and Leibler [17] is defined by S(ν, µ) = νi log i νi . µi (1) In noncommutative (or quantum) probability theory the relative entropy of normal positive functionals was first studied by Umegaki [33] in the case of semifinite von Neumann algebras as the noncommutative extension of information divergence.

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