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Alexandre Guay
Catholic University of Louvain
  1.  33
    A New Look at Emergence. Or When After is Different.Alexandre Guay & Olivier Sartenaer - 2016 - European Journal for Philosophy of Science 6 (2):297-322.
    In this paper, we put forward a new account of emergence called “transformational emergence”. Such an account captures a variety of emergence that can be considered as being diachronic and weakly ontological. The fact that transformational emergence actually constitutes a genuine form of emergence is motivated. Besides, the account is free of traditional problems surrounding more usual, synchronic versions of emergence, and it can find a strong empirical support in a specific physical phenomenon, the fractional quantum Hall effect, which has (...)
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  2.  14
    To Be Continued: The Genidentity of Physical and Biological Processes.Alexandre Guay & Thomas Pradeu - 2016 - In Alexandre Guay & Thomas Pradeu (eds.), Individuals Across the Sciences. Oxford University Press. pp. 317-347.
    The concept of genidentity has been proposed as a way to better understand identity through time, especially in physics and biology. The genidentity view is utterly anti-substantialist in so far as it suggests that the identity of X through time does not presuppose whatsoever the existence of a permanent “core” or “substrate” of X. Yet applications of this concept to real science have been scarce and unsatisfying. In this paper, our aim is to show that a well-defined concept of functional (...)
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  3. A Partial Elucidation of the Gauge Principle.Alexandre Guay - 2008 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 39 (2):346-363.
    The elucidation of the gauge principle ‘‘is the most pressing problem in current philosophy of physics’’ said Michael Redhead in 2003. This paper argues for two points that contribute to this elucidation in the context of Yang–Mills theories. (1) Yang–Mills theories, including quantum electrodynamics, form a class. They should be interpreted together. To focus on electrodynamics is potentially misleading. (2) The essential role of gauge and BRST symmetries is to provide a local field theory that can be quantized and would (...)
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  4. La Symétrie de Jauge Comme Sonde Philosophique.Alexandre Guay - 2013 - In Soazig Le Bihan (ed.), Précis de philosophie de la physique. Vuibert. pp. 295-308.
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  5.  93
    Conceptual Foundations of Yang–Mills Theories.Alexandre Guay - 2008 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 39 (3):687-693.
    Essay review of Gauging What’s Real: The Conceptual Foundations of Contemporary Gauge Theories R. Healey. Oxford University Press (2007). To be published in the Studies in History and Philosophy of Modern Physics, 39(3):687-693, 2008.
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  6. The Uses of Analogies in Seventeenth and Eighteenth Century Science.Alexandre Guay - 2011 - Perspectives on Science 19 (2):154-191.
    The object of this paper is to look at the extent and nature of the uses of analogy during the ªrst century following the so-called scientiªc revolution. Using the research tool provided by JSTOR we systematically analyze the uses of “analog” and its cognates (analogies, analogous, etc.) in the Philosophical Transactions of the Royal Society of London for the period 1665–1780. In addition to giving the possibility of evaluating quantitatively the proportion of papers explicitly using analogies, this approach makes it (...)
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  7.  11
    Une objectivité kaléidoscopique : construire l'image scientifique du monde.Pierre-Alain Braillard, Alexandre Guay, Cyrille Imbert & Thomas Pradeu - 2011 - Philosophie 110 (3):46-71.
    Dans Science, Perception and Reality, Sellars distingue l’image manifeste de l’homme et l’image scientifique de l’homme. La première est obtenue à partir de la façon dont nous prenons conscience de nous-mêmes comme humains dans le monde. La seconde correspond à ce que les différentes sciences nous amènent à postuler sur la manière dont l’homme est constitué. Van Fraassen, lui, étend au monde ces concepts...
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  8.  84
    Symmetry and its Formalisms: Mathematical Aspects.Alexandre Guay & Brian Hepburn - 2008 - Philosophy of Science 76 (2):160-178.
    This article explores the relation between the concept of symmetry and its formalisms. The standard view among philosophers and physicists is that symmetry is completely formalized by mathematical groups. For some mathematicians however, the groupoid is a competing and more general formalism. An analysis of symmetry that justifies this extension has not been adequately spelled out. After a brief explication of how groups, equivalence, and symmetries classes are related, we show that, while it’s true in some instances that groups are (...)
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  9.  8
    Why is the Transference Theory of Causation Insufficient? The Challenge of the Aharonov-Bohm Effect.Vincent Ardourel & Alexandre Guay - forthcoming - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics.
    The transference theory reduces causation to the transmission of physical conserved quantities, like energy or momenta. Although this theory aims at applying to all felds of physics, we claim that it fails to account for a quantum electrodynamic effect, viz. the Aharonov-Bohm effect. After having argued that the Aharonov-Bohm effect is a genuine counter-example for the transference theory, we offer a new physicalist approach of causation, ontic and modal, in which this effect is embedded.
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  10. Geometrical Aspects of Local Gauge Symmetry.Alexandre Guay - manuscript
    This paper is an analysis of the geometrical interpretation of local gauge symmetry for theories of the Yang-Mills type.
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  11.  88
    Why Yang-Mills Theories?Alexandre Guay - manuscript
    The elucidation of the gauge principle ``is the most pressing problem in current philosophy of physics" Redhead. This paper argues two points that contribute to this elucidation in the context of Yang-Mills theories. 1) Yang-Mills theories, including quantum electrodynamics, form a class. They should be interpreted together. To focus on electrodynamics is a mistake. 2) The essential role of gauge and BRST surplus is to provide a local theory that can be quantized and would be equivalent to the quantization of (...)
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  12.  94
    Philosophie de la Physique.Alexandre Guay - manuscript
    This document (in French) is an introduction to the philosophy of physics that I wrote for Anouk Barberousse (ed.), Manuel des Issambres, Gallimard, to be published.
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  13.  86
    The Arbitrariness of Local Gauge Symmetry.Alexandre Guay - manuscript
    This paper shows how the study of surpluses of structure is an interesting philosophical task. In particular I explore how local gauge symmetry in quantized Yang-Mills theories is the by-product of the specific dynamical structure of interaction. It is shown how in non relativistic quantum mechanics gauge symmetry corresponds to the freedom to locally define global features of gauge potentials. Also discussed is how in quantum field theory local gauge symmetry is replaced by BRST symmetry. This last symmetry is apparently (...)
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  14.  74
    Appareil, Image Et Particule.Alexandre Guay - 2007 - In Marion Froger, Sylvestra Mariniello & Jean-Louis Déotte (eds.), Appareil et Intermédialité. l’Harmattan.
    This chapter (in French) compares the ways to access to events in science and in art. In particular, the Déotte's concept of "appareil" is discussed. To be published in Jean-Louis Déotte and Sylvestra Mariniello (ed.), Appareil et Intermédialité, L'Harmattan, 2007.
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  15.  20
    Symétries, brisures de symétries et complexité en mathématiques, physique et biologie Luciano Boi, dir. Bern, Peter Lang , 2006, 297 p. [REVIEW]Alexandre Guay - 2009 - Dialogue 48 (4):900-902.
    Compte rendu de L. Boi, Symétries, brisures de symétries et complexité en mathématiques, physique et biologie, Peter Lang.
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  16.  2
    No Title Available: Dialogue.Alexandre Guay - 2009 - Dialogue 48 (4):900-902.
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  17. Symétries, brisures de symétries et complexité en mathématiques, physique et biologie. [REVIEW]Alexandre Guay - 2009 - Dialogue 48 (4):900-902.
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  18. Symetrie: Reflexions Sur les Formes Naturelles.Alexandre Guay - 2004 - Dissertation, Universite de Montreal (Canada)
    This thesis is a philosophical analysis, and in particular an ontological one, of symmetries in modern physics. In the first two chapters, the thesis analyzes the foundation of the concept of symmetry, which is defined as an invariance under a possible change to the system being studied. In the rest of the thesis, various philosophical problems concerning particular symmetries are discussed. This begins in the third chapter with an analysis of the formalization of the definition of symmetry given above in (...)
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  19.  8
    Individuals Across The Sciences.Thomas Pradeu & Alexandre Guay (eds.) - 2016 - Oxford University Press.
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