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Macroscopic reality and the dynamical reduction program

Abstract

With reference to recently proposed theoretical models accounting for reduction in terms of a unified dynamics governing all physical processes, we analyze the problem of working out a worldview accommodating our knowledge about natural phenomena. We stress the relevant conceptual differences between the considered models and standard quantum mechanics. In spite of the fact that both theories describe individual physical systems within a genuine Hilbert space framework, the nice features of spontaneous reduction theories drastically limit the class of states which are dynamically stable. This allows one to work out a description of the world in terms of a mass density function in ordinary configuration space. A topology based on this function and differing radically from the one characterizing the Hilbert space is introduced and in terms of it the idea of similarity of macroscopic situations is made precise. Finally it is shown how the formalism and the proposed interpretation yield a natural criterion for establishing the psychophysical parallelism. The conclusion is that, within the considered theoretical models and at the nonrelativistic level, one can satisfy all sensible requirements for a consistent, unified, and objective description of reality at the macroscopic level. (author). 16 refs.
Authors:
Publication Date:
Oct 01, 1995
Product Type:
Technical Report
Report Number:
IC-95/319
Reference Number:
SCA: 661100; PA: AIX-27:023276; EDB-96:048929; NTS-96:015381; SN: 96001554731
Resource Relation:
Other Information: PBD: Oct 1995
Subject:
66 PHYSICS; QUANTUM MECHANICS; HISTORICAL ASPECTS; LOCALITY; HIDDEN VARIABLES; STOCHASTIC PROCESSES; UNCERTAINTY PRINCIPLE; WAVE FUNCTIONS
OSTI ID:
194020
Research Organizations:
International Centre for Theoretical Physics (ICTP), Trieste (Italy)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ON: DE96617499; TRN: XA9640936023276
Availability:
INIS; OSTI as DE96617499
Submitting Site:
INIS
Size:
20 p.
Announcement Date:
Mar 14, 1996

Citation Formats

Ghirardi, G C. Macroscopic reality and the dynamical reduction program. IAEA: N. p., 1995. Web.
Ghirardi, G C. Macroscopic reality and the dynamical reduction program. IAEA.
Ghirardi, G C. 1995. "Macroscopic reality and the dynamical reduction program." IAEA.
@misc{etde_194020,
title = {Macroscopic reality and the dynamical reduction program}
author = {Ghirardi, G C}
abstractNote = {With reference to recently proposed theoretical models accounting for reduction in terms of a unified dynamics governing all physical processes, we analyze the problem of working out a worldview accommodating our knowledge about natural phenomena. We stress the relevant conceptual differences between the considered models and standard quantum mechanics. In spite of the fact that both theories describe individual physical systems within a genuine Hilbert space framework, the nice features of spontaneous reduction theories drastically limit the class of states which are dynamically stable. This allows one to work out a description of the world in terms of a mass density function in ordinary configuration space. A topology based on this function and differing radically from the one characterizing the Hilbert space is introduced and in terms of it the idea of similarity of macroscopic situations is made precise. Finally it is shown how the formalism and the proposed interpretation yield a natural criterion for establishing the psychophysical parallelism. The conclusion is that, within the considered theoretical models and at the nonrelativistic level, one can satisfy all sensible requirements for a consistent, unified, and objective description of reality at the macroscopic level. (author). 16 refs.}
place = {IAEA}
year = {1995}
month = {Oct}
}