12 found
  1. A General Argument Against Superluminal Transmission through the Quantum Mechanical Measurement Process.G. C. Ghirardi, A. Rimini & T. Weber - 1980 - Lettere Al Nuovo Cimento 27:294--298.
  2.  3
    Sneaking a Look at God's Cards: Unraveling the Mysteries of Quantum Mechanics.G. C. Ghirardi - 2004
    Quantum mechanics, which describes the behavior of subatomic particles, seems to challenge common sense. Waves behave like particles; particles behave like waves. You can tell where a particle is, but not how fast it is moving--or vice versa. An electron faced with two tiny holes will travel through both at the same time, rather than one or the other. And then there is the enigma of creation ex nihilo, in which small particles appear with their so-called antiparticles, only to disappear (...)
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  3.  29
    Bohmian Mechanics Revisited.E. Deotto & G. C. Ghirardi - 1998 - Foundations of Physics 28 (1):1-30.
    We consider the problem of whether there are deterministic theories describing the evolution of an individual physical system in terms of the definite trajectories of its constituent particles and which stay in the same relation to quantum mechanics as Bohmian mechanics but which differ from the latter for what concerns the trajectories followed by the particles. Obviously, one has to impose on the hypothetical alternative theory precise physical requirements. We analyze various such constraints and we show step by step how (...)
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    Parameter dependence and outcome dependence in dynamical models for state vector reduction.G. C. Ghirardi, R. Grassi, J. Butterfield & G. N. Fleming - 1993 - Foundations of Physics 23 (3):341-364.
    We apply the distinction between parameter independence and outcome independence to the linear and nonlinear models of a recent nonrelativistic theory of continuous state vector reduction. We show that in the nonlinear model there is a set of realizations of the stochastic process that drives the state vector reduction for which parameter independence is violated for parallel spin components in the EPR-Bohm setup. Such a set has an appreciable probability of occurrence (≈ 1/2). On the other hand, the linear model (...)
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    Do dynamical reduction models imply that arithmetic does not apply to ordinary macroscopic objects?G. C. Ghirardi & A. Bassi - 1999 - British Journal for the Philosophy of Science 50 (1):49-64.
    We analyse a recent paper in which an alleged devastating criticism of the so called GRW proposal to account for the objectification of the properties of macroscopic systems has been presented and we show that the author has not taken into account the precise implications of the GRW theory. This fact makes his conclusions basically wrong. We also perform a survey of measurement theory aimed to focus better on the physical and the conceptual aspects of the so-called macro-objectification problem.
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  6. The puzzling entanglement of Schrödinger's wave function.G. C. Ghirardi, A. Rimini & T. Weber - 1988 - Foundations of Physics 18 (1):1-27.
    A brief review of the conceptual difficulties met by the quantum formalism is presented. The main attempts to overcome these difficulties are considered and their limitations are pointed out. A recent proposal based on the assumption of the occurrence of a specific type of wave function collapse is discussed and its consequences for the above-mentioned problems are analyzed.
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  7. Describing the macroscopic world: Closing the circle within the dynamical reduction program. [REVIEW]G. C. Ghirardi, R. Grassi & F. Benatti - 1995 - Foundations of Physics 25 (1):5-38.
    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 systems within a genuine Hilbert space framework, the peculiar features of the spontaneous reduction models limit drastically the states which are dynamically stable. (...)
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  8. Bell's theorem and the foundations of modern physics.F. Barone, A. O. Barut, E. Beltrametti, S. Bergia, R. A. Bertlmann, H. R. Brown, G. C. Ghirardi, D. M. Greenberger, D. Home & M. Jammer - 1991 - Foundations of Physics 21 (8).
  9. Dynamical reduction theories as a natural basis for a realistic worldview.G. C. Ghirardi - 1998 - In Elena Castellani (ed.), Interpreting Bodies. Princeton University Press. pp. 258--96.
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  10. Bridging the gap: philosophy, mathematics, and physics.M. L. Dalla Chiara, G. Toraldo di Francia, G. Corsi & G. C. Ghirardi - 1993 - Boston Studies in the Philosophy of Science 140:261-283.
  11. Space, Time, and Frontiers of Human Understanding.G. C. Ghirardi & J. Statchel (eds.) - forthcoming - Springer.
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    Relativistic dynamical reduction models: General framework and examples. [REVIEW]G. C. Ghirardi, R. Grassi & P. Pearle - 1990 - Foundations of Physics 20 (11):1271-1316.
    The formulation of a relativistic theory of state-vector reduction is proposed and analyzed, and its conceptual consequences are elucidated. In particular, a detailed discussion of stochastic invariance and of local and nonlocal aspects at the level of individual systems is presented.
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