Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Philosophy of Science

The Quantum Theoretical Concept of Measurement

John L. McKnight

Published Oct 1, 1957• 12 citations
Publisher

Abstract

As a preliminary to the modern theory of measurement with which this paper is chiefly concerned, it is desirable to review a few of the characteristics and implications of classical physics to illustrate the far reaching changes that have taken place in our conception of nature as the result of the development of quantum mechanics.
DOI
10.1086/287553

Related papers

Quantum Theoretical Concepts of Measurement: Part I

James L Park

The overall purpose of this paper is to clarify the physical meaning and epistemological status of the term ‘measurement’ as used in quantum theory. After a review of the essential logical structure of quantum physics. Part I presents interpretive discussions contrasting the quantal concepts observable and ensemble with their classical ancestors along the lines of Margenau's latency theory. Against this background various popular ideas concerning the nature of quantum measurement are critically surveyed. The analysis reveals that, in addition to internal mathematical difficulties, all the so-called quantum theories of measurement are grounded in unjustifiable, classical presuppositions.

Philosophy of Science•Sep 1, 1968•36 citations

THE THEORY OF QUANTUM AND IT'S INFLUENCE TO MODERN SOCIETY

Zhang Wu-na

At the end of 19th century and the beginning of 20th century, deep crisis of the physics promoted itself great revolution, thus the quantum mechanics and the theory of relativity emerged. The establishment of quantum theory, opened the people to know the microcosm, has laid the solid rationale for the physics and even the entire natural sciences development. No one branch of modern physics and correlated peripheral subjects are not based on quantum .Quantum theory are changing modern science and technology profoundly and influencing humanity's thought as well. Reviewing the development of the course, we can feel the far-reaching influence of the quantum theory on the people's epistemology and the world outlook.

科技信息•Jan 1, 2008•0 citations

Quantum measurement

Jim Baggott

Abstract Measurement lies at the core of the quantum formalism. This may seem a statement of the intuitively obvious for any theoretical structure with a pretension to predict the outcomes of observations made or experiments performed on objects in the real world. But classical mechanics is a theorys of the physical properties of objects and their behaviour when exposed to different kinds of forces, and there is no particularly significant role for measurement other than a passive role involving the recording of those properties or behaviour. In contrast, measurement in quantum theory takes on a far deeper, almost ominous, significance

•Nov 6, 2003•0 citations

Towards a demystification of quantum mechanics

Giovanni Organtini

Quantum Mechanics is being included in numerous school programmes as part of the curriculum. Most modern textbooks introduce it emphasising its strange or, at least uncommon, somewhat paradoxical, character. We argue that such an approach is wrong because rather than attracting the interest of students toward the topic, it makes quantum mechanics almost unbelievable and artificial. The resulting perception is that quantum mechanics is in fact not understood at all and that we need a new theory that eventually will supersede it. In contrast, we propose a new approach on classical physics that, stressing the role of the measurements in physics, introduces the concept of state very early in the curriculum. Such a concept is reviewed on each classical physics topic and the concept of force as a vector is almost abandoned for the concept of interaction defined as something that change the state. In this way it is possible to introduce quantum mechanics without violating any conviction the students acquired learning classical physics. In other words quantum mechanics appears to be as natural as classical physics, at least from the point of view of the results of the experiments.

European Physical Society Conference on High Energy Physics (EPS-HEP)•Nov 10, 2017•0 citations

Toward tangible quantum nature

Yutaka Shikano

Recent quantum technology can reveal various quantum-mechanical phenomena. While the calculation in quantum mechanics can predict the probability distribution, this cannot tell us how to observe this. To construct the intuitive understanding from the measurement accessible quantities, quantum measurement theory is needed. In this proceedings, we briefly review this theory.

AIP conference proceedings•Jan 1, 2017•0 citations

Quantum Theoretical Concepts of Measurement: Part II

James L Park

This portion of the essay concludes a two-part paper, Part I of which appeared in an earlier issue of this Journal. Part II begins with a careful study of the quantum description of real experiments in order to motivate a proposal that two distinct quantum theoretical measurement constructs should be recognized, both of which must be distinguished from the concept of preparation. The different epistemological roles of these concepts are compared and explained. It is then concluded that the only possible type of “quantum measurement theory” is one of little metaphysical interest and that quantum measurement seems problematical only when viewed from an overly narrow classical perspective.

Philosophy of Science•Dec 1, 1968•9 citations
The overall purpose of this paper is to clarify the physical meaning and epistemological status of the term ‘measurement’ as used in quantum theory. After a review of the essential logical structure of quantum physics. Part I presents interpretive discussions contrasting the quantal concepts observable and ensemble with their classical ancestors along the lines of Margenau's latency theory. Against this background various popular ideas concerning the nature of quantum measurement are critically surveyed. The analysis reveals that, in addition to internal mathematical difficulties, all the so-called quantum theories of measurement are grounded in unjustifiable, classical presuppositions.
At the end of 19th century and the beginning of 20th century, deep crisis of the physics promoted itself great revolution, thus the quantum mechanics and the theory of relativity emerged. The establishment of quantum theory, opened the people to know the microcosm, has laid the solid rationale for the physics and even the entire natural sciences development. No one branch of modern physics and correlated peripheral subjects are not based on quantum .Quantum theory are changing modern science and technology profoundly and influencing humanity's thought as well. Reviewing the development of the course, we can feel the far-reaching influence of the quantum theory on the people's epistemology and the world outlook.
Abstract Measurement lies at the core of the quantum formalism. This may seem a statement of the intuitively obvious for any theoretical structure with a pretension to predict the outcomes of observations made or experiments performed on objects in the real world. But classical mechanics is a theorys of the physical properties of objects and their behaviour when exposed to different kinds of forces, and there is no particularly significant role for measurement other than a passive role involving the recording of those properties or behaviour. In contrast, measurement in quantum theory takes on a far deeper, almost ominous, significance
Quantum Mechanics is being included in numerous school programmes as part of the curriculum. Most modern textbooks introduce it emphasising its strange or, at least uncommon, somewhat paradoxical, character. We argue that such an approach is wrong because rather than attracting the interest of students toward the topic, it makes quantum mechanics almost unbelievable and artificial. The resulting perception is that quantum mechanics is in fact not understood at all and that we need a new theory that eventually will supersede it. In contrast, we propose a new approach on classical physics that, stressing the role of the measurements in physics, introduces the concept of state very early in the curriculum. Such a concept is reviewed on each classical physics topic and the concept of force as a vector is almost abandoned for the concept of interaction defined as something that change the state. In this way it is possible to introduce quantum mechanics without violating any conviction the students acquired learning classical physics. In other words quantum mechanics appears to be as natural as classical physics, at least from the point of view of the results of the experiments.
This portion of the essay concludes a two-part paper, Part I of which appeared in an earlier issue of this Journal. Part II begins with a careful study of the quantum description of real experiments in order to motivate a proposal that two distinct quantum theoretical measurement constructs should be recognized, both of which must be distinguished from the concept of preparation. The different epistemological roles of these concepts are compared and explained. It is then concluded that the only possible type of “quantum measurement theory” is one of little metaphysical interest and that quantum measurement seems problematical only when viewed from an overly narrow classical perspective.