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  1. Robert Weingard (1997). Trouble in Paradise? The Monist 80 (1):24-43.
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  2. Craig Callendar & Robert Weingard (1996). An Introduction to Topology. The Monist 79 (1):21--33.
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  3. Craig Callender & Robert Weingard (1996). Time, Bohm's Theory, and Quantum Cosmology. Philosophy of Science 63 (3):470-474.
    Onc of thc problems of quantnun cosmology follows from thc fact that thc Hamiltonian H of classical general relativity equals zero. Quantizing canonically in thc Schrodinger picture, thc Schrodinger equation for thc wave function *1* of thc universe is thcreforc thc so-called Whcelc:r—DeWitt..
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  4. Nick Huggett & Robert Weingard (1996). Critical Review: Paul Teller's Interpretive Introduction to Quantum Field Theory. Philosophy of Science 63 (2):302.
     
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  5. Nick Huggett & Robert Weingard (1996). Exposing the Machinery of Infinite Renormalization. Philosophy of Science 63 (3):167.
    We explicate recent results that shed light on the obscure and troubling problem of renormalization in Quantum Field Theory (QFT). We review how divergent predictions arise in perturbative QFT, and how they are renormalized into finite quantities. Commentators have worried that there is no foundation for renormalization, and hence that QFTs are not logically coherent. We dispute this by describing the physics behind liquid diffusion, in which exactly analogous divergences are found and renormalized. But now we are looking at a (...)
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  6. Nick Huggett & Robert Weingard (1996). Book Review:Interpretive Introduction to Quantum Field Theory Paul Teller. [REVIEW] Philosophy of Science 63 (2):302-.
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  7. Robert Weingard (1996). An Introduction to Topology. The Monist 79 (1):21-33.
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  8. Nick Huggett & Robert Weingard (1995). The Renormalisation Group and Effective Field Theories. Synthese 102 (1):171 - 194.
    Much apprehension has been expressed by philosophers about the method of renormalisation in quantum field theory, as it apparently requires illegitimate procedure of infinite cancellation. This has lead to various speculations, in particular in Teller (1989). We examine Teller's discussion of perturbative renormalisation of quantum fields, and show why it is inadequate. To really approach the matter one needs to understand the ideas and results of the renormalisation group, so we give a simple but comprehensive account of this topic. With (...)
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  9. Craig Callender & Robert Weingard (1994). The Bohmian Model of Quantum Cosmology. PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association 1994:218 - 227.
    A realist causal model of quantum cosmology (QC) is developed. By applying the de Broglie-Bohm interpretation of quantum mechanics to QC, we resolve the notorious 'problem of time' in QC, and derive exact equations of motion for cosmological dynamical variables. Due to this success, it is argued that if the situation in QC is used as a yardstick by which other interpretations are measured, the de Broglie-Bohm theory seems uniquely fit as an interpretation of quantum mechanics.
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  10. Nick Huggett & Robert Weingard (1994). Interpretations of Quantum Field Theory. Philosophy of Science 61 (3):370-388.
    In this paper we critically review the various attempts that have been made to understand quantum field theory. We focus on Teller's (1990) harmonic oscillator interpretation, and Bohm et al.'s (1987) causal interpretation. The former unabashedly aims to be a purely heuristic account, but we show that it is only interestingly applicable to the free bosonic field. Along the way we suggest alternative models. Bohm's interpretation provides an ontology for the theory--a classical field, with a quantum equation of motion. This (...)
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  11. Nick Huggett & Robert Weingard (1994). On the Field Aspect of Quantum Fields. Erkenntnis 40 (3):293 - 301.
    In this paper we contrast the idea of a field as a system with an infinite number of degrees of freedom with a recent alternative proposed by Paul Teller in Teller (1990). We show that, although our characterisation lacks the immediate appeal of Teller's, it has more success producing agreement with intuitive categorisations than his does. We go on to extend the distinction to Quantum Mechanics, explaining the important role that it plays there. Finally, we take some time to investigate (...)
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  12. Gerrit Smith & Robert Weingard (1990). Quantum Cosmology and the Beginning of the Universe. Philosophy of Science 57 (4):663-667.
    In this note a recently developed quantum oscillating finite space cosmological model is described. The principle novelty of the model is that there is a quantum blurring of the classical singularity between cycles, instead of a singularity free bounce. Recently, Quentin Smith (1988) has argued that present theoretical and observational evidence justifies the belief that the past history of the universe is finite. The relevance of this cosmological model to Smith's arguments is discussed.
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  13. Robert Weingard (1989). Some Comments Concerning Spin and Relativity. British Journal for the Philosophy of Science 40 (2):287-288.
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  14. Robert Weingard (1988). A Philosopher Looks at String Theory. PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association 1988:95 - 106.
    In this paper I first describe some simple, but interesting string theory. Then I discuss string field theory and suggest that even though we do not have a complete mathematical formulation, we can get an idea of some of its ontological implications. Next, the significance of supersymmetry and superspace in string theory is briefly considered. Lastly, I consider the question of whether there is, in fact, (good) reason to think string theory may (or will) emerge to replace quantum field theory.
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  15. Gerrit J. Smith & Robert Weingard (1987). A Relativistic Formulation of the Einstein-Podolsky-Rosen Paradox. Foundations of Physics 17 (2):149-171.
    The Einstein-Podolsky-Rosen (EPR) paradox and the correlated states it introduced comprise one of the central interpretive problems of quantum mechanics. Because of the apparent nonlocal character of this paradox, it should be given a relativistic treatment. The purpose of this paper is to provide such a treatment.
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  16. Robert Weingard & Gerrit Smith (1986). Book Review:Foundations of Space-Time Theories Michael Friedman. [REVIEW] Philosophy of Science 53 (2):286-.
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  17. Robert Weingard (1984). Grand Unified Gauge Theories and the Number of Elementary Particles. Philosophy of Science 51 (1):150-155.
    Recently, Michael Redhead has argued that the grouping of particles into multiplets by grand unified gauge theories (GUT's) does not, by itself, imply an ontological reduction in the number of elementary particles. While sympathetic to Redhead's argument, in this note I argue that under certain conditions involving Kaluza-Klein theories, GUT's would provide such an ontological reduction.
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  18. Robert Weingard (1982). Do Virtual Particles Exist? PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association 1982:235 - 242.
    In this paper a few facts about Feynman diagrams and the perturbation expansion of the S-matrix are reviewed and discussed in connection with the question of the ontological status of virtual particles.
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  19. Robert Weingard & Gerrit Smith (1982). Spin and Space. Synthese 50 (2):213 - 231.
    In this paper we will take a careful look at the well-known fact that a complete 2 rotation in three dimensional space, while leaving vectors, tensors and generally the integral representations of the rotation group unchanged, causes a sign change in the half-integral spinor representations of the rotation group. First, in a brief introduction, we review the origin of the sign change of spinors by a 2 rotation. Next, we analyze Aharonov and Susskind's (hereafter referred to as A. & S.) (...)
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  20. Robert Weingard (1979). General Relativity and the Length of the Past. British Journal for the Philosophy of Science 30 (2):170-172.
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  21. Robert Weingard (1979). General Relativity and the Conceivability of Time Travel. Philosophy of Science 46 (2):328-332.
  22. Robert Weingard (1979). Some Philosophical Aspects of Black Holes. Synthese 42 (1):191 - 219.
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  23. Robert Weingard (1977). Book Review:Space, Time and Spacetime Lawrence Sklar. [REVIEW] Philosophy of Science 44 (1):167-.
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  24. Robert Weingard (1977). On Cracking That Nut, Absolute Space. Philosophy of Science 44 (2):288-291.
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  25. Robert Weingard (1977). Relativity and the Spatiality of Mental Events. Philosophical Studies 31 (4):279 - 284.
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  26. Robert Weingard (1977). Space-Time and the Direction of Time. Noûs 11 (2):119-131.
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  27. Robert Weingard (1976). On the Unity of Space. Philosophical Studies 29 (3):215 - 220.
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  28. Robert Weingard (1975). On the Ontological Status of the Metric in General Relativity. Journal of Philosophy 72 (14):426-431.
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  29. Tryg A. Ager, Jerrold L. Aronson & Robert Weingard (1974). Are Bridge Laws Really Necessary? Noûs 8 (2):119-134.
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  30. Robert Weingard (1972). Berger on Earman on Temporal Anisotropy. Journal of Philosophy 64 (21):786-790.
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  31. Robert Weingard (1972). On Travelling Backward in Time. Synthese 24 (1-2):117 - 132.
    We must conclude, from the above discussion, that Putnam has not satisfactorily explained how a person can go back in time and thus has not offered any compelling reason why we should accept his description of Oscar rather than his objector's description. However, earlier in our discussion, a possible way to show that Oscar did go back in time came to light: namely, if it could be shown that Oscar2 was at B at t 1 because Oscar1 entered the time (...)
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  32. Robert Weingard (1972). Relativity and the Reality of Past and Future Events. British Journal for the Philosophy of Science 23 (2):119-121.
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