Summary
A contribution is given to the attempts towards a solution of the measurement problem in quantum mechanics, in the spirit of some previous papers. In order to justify the possibility of a macroscopic description of the measuring apparatus, a relevant hypothesis is found to be the separation of two characteristic times: the decay time for the kernel of a generalized master equation and the characteristic time for the evolution of macroscopic quantities of the measuring device.
Riassunto
Si fornisce un contributo alla ricerca di una soluzione del problema quantistico della misurazione, seguendo la linea di precedenti lavori. Si trova che, nel giustificare la possibilità di descrivere macroscopicamente l'apparecchio di misura, gioca un ruolo importante la separazione di due tempi caratteristici: l'uno, tempo caratteristico per il decadimento del nucleo di una master equation generalizzata, l'altro, tempo caratteristico per l'evoluzione delle grandezze macroscopiche relative all'apparecchio di misura.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Daneri, A. Loinger andG. M. Prosperi:Nuovo Cimento,44 B, 119 (1966);G. M. Prosperi:Encyclopedic Dictionary of Physics, Suppl., Vol.2 (Oxford, 1967);Macroscopic physics, quantum mechanics and quantum theory of measurement, in press in theProceedings of the Conference on Quantum Theory and Beyond (Cambridge, 1968). Cfr. also:G. Ludwig:Zeits. Phys.,135, 483 (1953);Die Grundlagen der Quantenmechanik, Chap. 5 (Berlin, 1954);Phys. Bl.,11, 489 (1955);A. Daneri, A. Loinger andG. M. Prosperi:Nucl. Phys.,33, 297 (1962);L. Rosenfeld:Suppl. Theor. Phys., Extra No. 222 (1965);E. P. Wigner:Zeits. Phys.,133, 101 (1952);Am. Journ. Phys.,31, 755 (1963);J. W. Jauch:Helv. Phys. Acta,37, 193 (1964);J. M. Jauch, M. M. Yanase andE. P. Wigner:Nuovo Cimento,48 B, 144 (1968);A. Loinger:Nucl. Phys.,108 A, 245 (1968);L. Rosenfeld:Nucl. Phys.,108 A, 241 (1968);J. Bub:Nuovo Cimento,57 B, 503 (1968);W. Weidlich:Zeits. Phys.,205, 199 (1967);F. Haake andW. Weidlich:Zeits. Phys.,213, 451 (1968).
L. Van Hove:Physica,23, 441 (1957);R. Zwanzig:Lectures in Theoretical Physics, Vol.3 (Boulder, Colo., 1960), p. 106;G. Ludwig:Zeits. Phys.,173, 232 (1963);G. Emch:Helv. Phys. Acta,37, 532 (1964). Cf. also:R. Zwanzig:Journ. Chem. Phys.,33, 1338 (1960);Phys. Rev.,124, 983 (1961);E. W. Montroll:Lectures in Theoretical Physics, Vol.3 (Boulder, Colo., 1960), p. 221;I. Prigogine andP. Résibois:Physica,27, 629 (1961);P. Résibois:Physica,27, 541 (1961);I. Prigogine:Non Equilibrium Statistical Mechanics (New York, 1962);P. Résibois: inE. Meeron:Physics of Many-Particle Systems (New York, 1966);S. R. de Groot andP. Mazur:Non Equilibrium Thermodynamics (Amsterdam, 1962).
L. Lanz andG. Ramella:Physica,44, 499 (1969);L. Lanz andL. A. Lugiato:Physica,47, 345 (1970);G. M. Prosperi: inAtti del Convegno sulla Metodologia della Termodinamica (Torino, 1968);I. Prigogine:Non Equilibrium Statistical Mechanics (New York, 1962), p. 161.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lanz, L., Prosperi, G.M. & Sabbadini, A. Time scales and the problem of measurement in quantum mechanics. Nuov Cim B 2, 184–192 (1971). https://doi.org/10.1007/BF02723082
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02723082