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  1. Non-accessible mass and the ontology of GRW.Cristian Mariani - 2022 - Studies in History and Philosophy of Science Part A 91 (C):270-279.
    The Mass Density approach to GRW (GRWm for short) has been widely discussed in the quantum foundations literature. A crucial feature of GRWm is the introduction of a Criterion of Accessibility for mass, which allows to explain the determinacy of experimental outcomes thus also addressing the tails problem of GRW. However, the Criterion of Accessibility leaves the ontological meaning of the non-accessible portion of mass utterly unexplained. In this paper I discuss two viable approaches to non-accessible mass, which I call (...)
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  • In Defence of Naiveté: The Conceptual Status of Lagrangian Quantum Field Theory.David Wallace - 2006 - Synthese 151 (1):33-80.
    I analyse the conceptual and mathematical foundations of Lagrangian quantum field theory (QFT) (that is, the ‘naive’ (QFT) used in mainstream physics, as opposed to algebraic quantum field theory). The objective is to see whether Lagrangian (QFT) has a sufficiently firm conceptual and mathematical basis to be a legitimate object of foundational study, or whether it is too ill-defined. The analysis covers renormalisation and infinities, inequivalent representations, and the concept of localised states; the conclusion is that Lagrangian QFT (at least (...)
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  • Finding your marbles in wavefunction collapse theories.Daniel Parker - 2003 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 34 (4):607-620.
    Lewis 313) has recently presented an argument claiming that, under the Ghirardi–Rimini–Weber theory of quantum mechanics, arithmetic does not apply to ordinary macroscopic objects such as marbles . In this paper, I disentangle two different lines of Lewis's argument, one devoted to what I call the standard GRW interpretation and the other to the mass density interpretation . I present both strains of Lewis's argument, and move on to criticise Lewis's position, focusing on his argument with respect to MDI. I (...)
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  • Finding your marbles in wavefunction collapse theories.Daniel Parker - 2003 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 34 (4):607-620.
  • The problem of ontology for spontaneous collapse theories.Bradley Monton - 2004 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 35 (3):407-421.
    The question of how to interpret spontaneous collapse theories of quantum mechanics is an open one. One issue involves what link one should use to go from wave function talk to talk of ordinary macroscopic objects. Another issue involves whether that link should be taken ontologically seriously. In this paper, I ague that the link should be taken ontologically seriously; I argue against an ontology consisting solely of the wave function. I then consider three possible links: the fuzzy link, the (...)
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  • GRW: A case study in quantum ontology.Peter J. Lewis - 2006 - Philosophy Compass 1 (2):224–244.
  • Four strategies for dealing with the counting anomaly in spontaneous collapse theories of quantum mechanics.Peter J. Lewis - 2003 - International Studies in the Philosophy of Science 17 (2):137 – 142.
    A few years ago, I argued that according to spontaneous collapse theories of quantum mechanics, arithmetic applies to macroscopic objects only as an approximation. Several authors have written articles defending spontaneous collapse theories against this charge, including Bassi and Ghirardi, Clifton and Monton, and now Frigg. The arguments of these authors are all different and all ingenious, but in the end I think that none of them succeeds, for reasons I elaborate here. I suggest a fourth line of response, based (...)
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  • Counting marbles: A reply to critics.Peter J. Lewis - 2003 - British Journal for the Philosophy of Science 54 (1):165-170.
  • The parts and the whole: Collapse theories and systems with identical constituents.GianCarlo Ghirardi - 2013 - Studies in History and Philosophy of Modern Physics 44 (1):40-47.
    The very formal structure of quantum mechanics implies the loss of individuality of physical systems and it requires to look at the Universe as an unbroken whole. The main reason for which, within such a theory, one must renounce to a clear identification of the parts and the whole is the superposition principle which stays at the basis of the theory. It implies, as well known, the phenomenon of entanglement which, in the most extreme case, entails that the constituents of (...)
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  • On the property structure of realist collapse interpretations of quantum mechanics and the so-called "counting anomaly".Roman Frigg - 2003 - International Studies in the Philosophy of Science 17 (1):43 – 57.
    The aim of this article is twofold. Recently, Lewis has presented an argument, now known as the "counting anomaly", that the spontaneous localization approach to quantum mechanics, suggested by Ghirardi, Rimini, and Weber, implies that arithmetic does not apply to ordinary macroscopic objects. I will take this argument as the starting point for a discussion of the property structure of realist collapse interpretations of quantum mechanics in general. At the end of this I present a proof of the fact that (...)
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  • GRW as an ontology of dispositions.Mauro Dorato & Michael Esfeld - 2010 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 41 (1):41-49.
    The paper argues that the formulation of quantum mechanics proposed by Ghirardi, Rimini and Weber (GRW) is a serious candidate for being a fundamental physical theory and explores its ontological commitments from this perspective. In particular, we propose to conceive of spatial superpositions of non-massless microsystems as dispositions or powers, more precisely propensities, to generate spontaneous localizations. We set out five reasons for this view, namely that (1) it provides for a clear sense in which quantum systems in entangled states (...)
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  • Some remarks on the foundations of quantum theory.E. B. Davies - 2005 - British Journal for the Philosophy of Science 56 (3):521-539.
    Although many physicists have little interest in philosophical arguments about their subject, an analysis of debates about the paradoxes of quantum mechanics shows that their disagreements often depend upon assumptions about the relationship between theories and the real world. Some consider that physics is about building mathematical models which necessarily have limited domains of applicability, while others are searching for a final theory of everything, to which their favourite theory is supposed to be an approximation. We discuss some particular recent (...)
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  • Discussion. More about dynamical reduction and the enumeration principle.Angelo Bassi & GianCarlo Ghirardi - 1999 - British Journal for the Philosophy of Science 50 (4):719-734.
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  • Counting marbles: Reply to Clifton and Monton.Angelo Bassi & GianCarlo Ghirardi - 2001 - British Journal for the Philosophy of Science 52 (1):125-130.
  • Life and Death in the Tails of the Wave Function.David Wallace - unknown
    It seems to be widely assumed that the only effect of the Ghirardi-Rimini-Weber dynamical collapse mechanism on the `tails' of the wavefunction is to reduce their weight. In consequence it seems to be generally accepted that the tails behave exactly as do the various branches in the Everett interpretation except for their much lower weight. These assumptions are demonstrably inaccurate: the collapse mechanism has substantial and detectable effects within the tails. The relevance of this misconception for the dynamical-collapse theories is (...)
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