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arXiv:quant-ph/9809011

Measurement and Its Mathematical Scale

Wang, Zhen

Published Sep 4, 1998• 0 citations
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Abstract

It is argued that every measurement is made in a certain scale. The scale in which present measuments are made is called present scale which gives present knowledge. Quantities at the limits to present measurement may be observables in other scales. Cantor's series of infinites is used to describe scales of measurement. Continuum Hypothesis and Schroedinger Cat are discussed.

DOI
10.48550/arxiv.quant-ph/9809011

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It is argued that every measurement is made in a certain scale. The scale in which present measuments are made is called present scale which gives present knowledge. Quantities at the limits to present measurement may be observables in other scales. Cantor's series of infinites is used to describe scales of measurement. Continuum Hypothesis and Schroedinger Cat are discussed.
It has been suggested that the measuring apparatus used to measure quantum systems ought to be idealized as consisting of an infinite number of quantum systems. Let us call this the infinity assumption. The suggestion that we ought to make the infinity assumption has been made in connection with two closely related but distinct problems. One is the problem of determining the importance of the limitations on measurement incorporated into the Wigner-Araki-Yanase quantum theory of measurement. The other is the measurement problem. These problems are not internal to the quantum mechanical formalism. They arise when we obtain particular formal results in applying the quantum mechanical formalism to measurement interactions. The formal results are problematic because they resist explanation. Various authors have claimed that by making the infinity assumption we can neglect the limitations on measurement. Bub (1988) and (1989) claims it allows us to solve the measurement problem. I will argue that both claims are unjustified.
Q UANTUM MECHANICS, TOGETHER WITH RELATIVITY, are the basis of most of what we know of the very large, the very small, and the very fast.And in all of these areas our knowledge is extensive.It would be hard to say how good these theories are; arithmetic, one might say, is good mathematics.For all that, there is a problem, a strange and amorphous difficulty: it is the problem of measurement.This problem has become much more interesting, and much more pressing, as a result of some recent developments.Hitherto the difficulty has been so peculiar, and so formless, that physicists have on the whole thought it a matter of philosophy.But that is not quite right (or that is what I shall argue).It is certainly philosophical, but it is also a matter of methodology, a question of what physics is to do; and now the matter has come to seem quite pressing.In this sense the measurement problem has become a problem for physics.But what is the problem of measurement?As a first stab, we can say this: on the basis of quantum mechanics, there is a difficulty in accounting for the
Scales of the microworld are defined on the grounds of the hierarchy that can be set up within a well ordered finite or infinite countable set of well ordered sets. Indirect measurements in pure mathematical as well as physical meaning are considered as the mean to obtain information on the occurring within each scale. The general concept of the physical laws within a certain scale is defined in the framework of the set theory. The hypothesis is proposed that quarks are not within the same scale as other elementary particles are, but within the following ("smaller", exactly of lower hierarchy) scale. Maybe, in particular, this is the cause of difficulties of the free quark detection? Some other consequences of the abovementioned hypothesis are discussed. Limitations of the possibility to obtain information on the going on within sets of low hierarchy (in particular, "small" scales of the microworld, in physics) and to transfer it toward the set of the highest hierarchy (in particular, to the macroscopic observer in physics) are found as a consequences of the multi-step character of measurements. Keywords: microworld scales, set theory, information value and hierarchy, well-ordered set hierarchy, sub-quantum physics, indirect measurements, quarks PACS: 02.10.Ab, 03.65.Ta
The quantum information introduced by quantum mechanics is equivalent to a certain generalization of classical information: from finite to infinite series or collections. The quantity of information is the quantity of choices measured in the units of elementary choice. The “qubit”, can be interpreted as that generalization of “bit”, which is a choice among a continuum of alternatives. The axiom of choice is necessary for quantum information. The coherent state is transformed into a well-ordered series of results in time after measurement. The quantity of quantum information is the transfinite ordinal number corresponding to the infinity series in question. The transfinite ordinal numbers can be defined as ambiguously corresponding “transfinite natural numbers” generalizing the natural numbers of Peano arithmetic to “Hilbert arithmetic” allowing for the unification of the foundations of mathematics and quantum mechanics.