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Articles 1 - 5 of 5
Full-Text Articles in Philosophy of Science
The Discovery Of Quantum Mechanics, Patrick A. Heelan
The Discovery Of Quantum Mechanics, Patrick A. Heelan
Research Resources
In this chapter Heelan discusses how Heisenberg's insight of 1925, that physics should concern itself henceforth only with relations between observables, changed the intentionality-structure of physics. This insight led Heisenberg to the construction of a quantum mechanics of observables. Heelan briefly discusses the significance of his insighand of his rejection of Schrödinger's wave mechanics; the novelty of quantum mechanics as a physical theory, and the meaning he attributed to its most surprising result, viz., the Indeterminacy Relations. The crisis was a crisis of the rationalism inherent in the outlook of classical physics, and Heisenberg's insistence on "observable quantities" was a …
Quantum Mechanics And Objectivity - Table Of Contents And Preface And Acknowledgments, Patrick A. Heelan
Quantum Mechanics And Objectivity - Table Of Contents And Preface And Acknowledgments, Patrick A. Heelan
Research Resources
This book deals with the 'crisis of objectivity' and the 'crisis of realism' which overtook physics when Heisenberg and Bohr consciously rejecting the intentionality-structure of classical physics, gave physics a new form and a new philosophy. The new physics was called quantum mechanics and the new philosophy was called complimentarity. Using the method 'analysis of horizons,' the author attempts to disentangle the epistemological and ontological pesuppositions of Heisenberg's view of complementarity. A similar analysis of Bohr's view of complimentarity reveals a remarkable contrast in basic philosophy between the two founders of quantum physics. The author distinguishes various kinds of objectivity …
Complementarity And The Scientific Method: A Criticism, Patrick A. Heelan
Complementarity And The Scientific Method: A Criticism, Patrick A. Heelan
Research Resources
In this chapter "Conplementarity and the Scientific Method" of his Quantum Mechanics and Objectivity, Heelan argues that the philosophy of complementarity, although successful in providing physicists with a common language with which to describe quantum phenomena, also contains a theory about scientific method and about human knowing which is open to criticism. Heelan here criticises the following points arising out of the philosophy of complementarity: psycho-physical parallelism; the view that quantum mechanical properties are to be defined classically; and the perturbation theory of measurement. In the course of the criticism, he elaborates the distinction between two types of concepts …
Reality In Heisenberg's Philosophy - Chapter Eight Of Heelan's Quantum Mechanics And Objectivity, Patrick Heelan
Reality In Heisenberg's Philosophy - Chapter Eight Of Heelan's Quantum Mechanics And Objectivity, Patrick Heelan
Research Resources
This chapter contains a study of Heisenberg's views of the ontological content of quantum mechanics from I925 until the present day. During the quantum revolution of I925, he began by accepting a Berkeley-type empiricism in which the reality of a quantum mechanical system was reduced to that of a set of observation events, which were, however, acausally connected and in consequence did not constitute a stable phenomenal object of experimental knowledge. After 1955, he professed a modified form of Kantian philosophy whose starting point was the existence of universal and necessary scientific laws. Those universal and necessary scientific laws from …
The Intentionality Structure Of Complementarity, Patrick A. Heelan
The Intentionality Structure Of Complementarity, Patrick A. Heelan
Research Resources
In this article Heelan argues that the return to the concrete and empirical implied in Heisenberg's insight on the importance of observables in physics was not, however, in Heisenberg's case, accompanied by a thorough re-thinking of the rationalist presuppositions of classical physics. The effect on Bohr, however, was to lead him to a complete rejection of rationalism and to the adoption of the contrary extreme, empiricism. The profound – though largely implicit – cause of the disagreement between Bohr and Heisenberg as to the correct interpretation of quantum mechanics, was resolved in the sumnler of 1927, by the common acceptance …