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" An Axiomatic Basis for Quantum Mechanics : "
by Günther Ludwig.
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BL
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753079
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b573040
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| Main Entry
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by Günther Ludwig.
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| Title & Author
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An Axiomatic Basis for Quantum Mechanics : : Volume 2 Quantum Mechanics and Macrosystems\ by Günther Ludwig.
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| Publication Statement
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Berlin, Heidelberg : Springer Berlin Heidelberg, 1987
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(4 illustrations)
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| ISBN
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3642718973
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: 364271899X
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: 9783642718977
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: 9783642718991
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| Contents
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IX Further Structures of Preparation and Registration --; § 1 Transformations of Registration Procedures Relative to Preparation Procedures --; § 2 Composite System and Scattering Experiments --; § 3 Measurement Scatterings and Transportations --; X The Embedding Problem --; § 1 Classical Theories as Approximations to the Quantum Mechanics of Microsystems --; § 2 Macroscopic Systems and an Extrapolated Quantum Mechanics --; § 3 Examples for Approximate Embedding --; § 4 Intermediate Systems --; XI Compatibility of PTq with PTqexp --; § 1 Scattering of Microsystems on Macrosystems --; § 2 Preparation --; § 3 Registration --; § 4 Coupling of Preparation and Registration --; § 5 Macrosystems as Transpreparators --; § 6 The Problem of Embedding the Scattering Theory of Microsystems on Macrosystems in PTqexp --; § 7 The Problem of the Desired Observables and Preparators --; XII Special Structures in Preparation and Registration Devices --; § 1 Measurement Chains --; § 2 The Einstein-Podolsky-Rosen Paradox --; § 3 Microsystems and Time Direction --; § 4 Macrosystems and Time Direction --; § 5 The Place of Human Beings in Quantum Mechanics --; XIII Relations Between Different Forms of Quantum Mechanics and the Reality Problem --; § 1 Correspondence Rules --; § 2 The Physical Contents of a Theory --; § 3 Intertheory Relations --; § 4 Physically Possible, Physically Real Facts and Physically Open Questions --; List of Frequently Used Symbols (1) --; List of Frequently Used Symbols (2) --; List of Axioms.
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| Abstract
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In the first volume we based quantum mechanics on the objective description of macroscopic devices. The further development of the quantum mechanics of atoms, molecules, and collision processes has been described in [2]. In this context also the usual description of composite systems by tensor products of Hilbert spaces has been introduced. This method can be formally extrapolated to systems composed of "many" ele mentary systems, even arbitrarily many. One formerly had the opinion that this "extrapolated quantum mechanics" is a more comprehensive theory than the objec tive description of macrosystems, an opinion which generated unsurmountable diffi culties for explaining the measuring process. With respect to our foundation of quan tum mechanics on macroscopic objectivity, this opinion would mean that our founda tion is no foundation at all. The task of this second volume is to attain a compatibility between the objective description of macrosystems and an extrapolated quantum mechanics. Thus in X we establish the "statistical mechanics" of macrosystems as a theory more compre hensive than an extrapolated quantum mechanics. On this basis we solve the problem of the measuring process in quantum mechan ics, in XI developing a theory which describes the measuring process as an interaction between microsystems and a macroscopic device. This theory also allows to calculate "in principle" the observable measured by a device. Neither an incorporation of consciousness nor a mysterious imagination such as "collapsing" wave packets are necessary.
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Physics.
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Quantum theory.
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| LC Classification
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QC174.12B948 1987
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| Added Entry
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Günther Ludwig
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