20 found
Order:
See also:
Profile: Alexandre Guay (Catholic University of Louvain)
  1.  7
    Alexandre Guay & Thomas Pradeu (2016). To Be Continued: The Genidentity of Physical and Biological Processes. In Alexandre Guay & Thomas Pradeu (eds.), Individuals Across the Sciences. Oxford University Press 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 (...)
    Direct download (3 more)  
     
    Export citation  
     
    My bibliography   2 citations  
  2. Alexandre Guay (2013). La Symétrie de Jauge Comme Sonde Philosophique. In Soazig Le Bihan (ed.), Précis de philosophie de la physique. Vuibert 295-308.
    Translate
      Direct download  
     
    Export citation  
     
    My bibliography  
  3.  97
    Alexandre Guay (2008). A Partial Elucidation of the Gauge Principle. Studies in History and Philosophy of Science Part B 39 (2):346-363.
    The elucidation of the gauge principle "is the most pressing problem in current philosophy of physics" 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 be (...)
    Direct download (7 more)  
     
    Export citation  
     
    My bibliography   4 citations  
  4.  70
    Yves Gingras & Alexandre Guay (2011). The Uses of Analogies in Seventeenth and Eighteenth Century Science. Perspectives on Science 19 (2):154-191.
    The uses of analogy are ancient. It can even be argued that analogical thinking is the most basic cognitive tool humans have to move from the unknown to the known (Gentner et al. 2001). As Olson succinctly puts it, “analogies are useful when it is desired to compare an unfamiliar system with one that is better known” (Olson 1943, p. i). Analogical thinking is thus ubiquitous and found in many texts at least since Homer in Antiquity (Lloyd 1966). For example, (...)
    Direct download (4 more)  
     
    Export citation  
     
    My bibliography   2 citations  
  5.  18
    Alexandre Guay & Olivier Sartenaer (2016). A New Look at Emergence. Or When After is Different. 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 (...)
    Direct download (2 more)  
     
    Export citation  
     
    My bibliography  
  6.  80
    Alexandre Guay & Brian Hepburn (2009). Symmetry and its Formalisms: Mathematical Aspects. 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 (...)
    Direct download (7 more)  
     
    Export citation  
     
    My bibliography   1 citation  
  7.  91
    Alexandre Guay, Geometrical Aspects of Local Gauge Symmetry.
    This paper is an analysis of the geometrical interpretation of local gauge symmetry for theories of the Yang-Mills type.
    Direct download (3 more)  
     
    Export citation  
     
    My bibliography  
  8.  81
    Alexandre Guay, Why Yang-Mills Theories?
    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 (...)
    Direct download (3 more)  
     
    Export citation  
     
    My bibliography  
  9.  90
    Alexandre Guay (2008). Conceptual Foundations of Yang–Mills Theories. Studies in History and Philosophy of Science Part B 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.
    Direct download (6 more)  
     
    Export citation  
     
    My bibliography  
  10.  90
    Alexandre Guay, Philosophie de la Physique.
    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.
    Direct download (3 more)  
     
    Export citation  
     
    My bibliography  
  11.  80
    Alexandre Guay, The Arbitrariness of Local Gauge Symmetry.
    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 (...)
    Direct download (3 more)  
     
    Export citation  
     
    My bibliography  
  12.  73
    Alexandre Guay (2007). Appareil, Image Et Particule. 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.
    Direct download (3 more)  
     
    Export citation  
     
    My bibliography  
  13.  9
    Alexandre Guay & Yves Gingras (2011). The Uses of Analogies in Seventeenth and Eighteenth Century Science. 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 (...)
    Direct download  
     
    Export citation  
     
    My bibliography  
  14.  2
    Alexandre Guay (2008). A Partial Elucidation of the Gauge Principle. 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 (...)
    Direct download (2 more)  
     
    Export citation  
     
    My bibliography  
  15.  14
    Alexandre Guay (2009). Symétries, brisures de symétries et complexité en mathématiques, physique et biologie Luciano Boi, dir. Bern, Peter Lang , 2006, 297 p. [REVIEW] Dialogue 48 (4):900-902.
    Compte rendu de L. Boi, Symétries, brisures de symétries et complexité en mathématiques, physique et biologie, Peter Lang.
    Translate
      Direct download (2 more)  
     
    Export citation  
     
    My bibliography  
  16.  6
    Pierre-Alain Braillard, Alexandre Guay, Cyrille Imbert & Thomas Pradeu (2011). Une objectivité kaléidoscopique : construire l'image scientifique du monde. Philosophie 110 (2):46-71.
    No categories
    Translate
      Direct download (2 more)  
     
    Export citation  
     
    My bibliography  
  17.  2
    Alexandre Guay (2009). No Title Available: Dialogue. Dialogue 48 (4):900-902.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    My bibliography  
  18. Alexandre Guay (2008). Conceptual Foundations of Yang–Mills Theories. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 39 (3):687-693.
    Direct download (2 more)  
     
    Export citation  
     
    My bibliography  
  19. Alexandre Guay (2004). Symetrie: Reflexions Sur les Formes Naturelles. 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 (...)
    Translate
     
     
    Export citation  
     
    My bibliography  
  20. Thomas Pradeu & Alexandre Guay (eds.) (2016). Individuals Across The Sciences. Oxford University Press.
    No categories
    Direct download  
     
    Export citation  
     
    My bibliography