By Hans Günter Dosch

ISBN-10: 3540282114

ISBN-13: 9783540282112

ISBN-10: 3540282122

ISBN-13: 9783540282129

Viewing actual theories as symbolic structures got here to the fore in the midst of the 19th century with the emancipation of the classical conception of the electromagnetic box from mechanics; such a lot significantly this occurred during the paintings of Helmholtz, Hertz, Poincar?, and later Weyl. The epistemological difficulties that nourished this improvement are this day highlighted inside of quantum box conception. the current essay begins with a concise and non-technical define of the firmly established features of relativistic quantum box thought, i.e. the very  winning description of subnuclear phenomena. the actual equipment, through which those diversified facets need to be accessed, then get defined as designated elements of quantum box concept. The authors exhibit how those diversified elements range with admire to the relation among quantum fields and linked debris. hence, by way of emphasising the respective position of assorted easy strategies concerned, the authors declare that just a very basic epistemic process can accurately account for this range - an account they hint again to the philosophical writings of the aforementioned physicists and mathematicians. eventually, what they name their semiotic point of view on quantum box thought will get on the topic of fresh discussions in the philosophy of technology and seems to behave as a counterbalance to, for example, structural realism.

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S. Eidelman and others: Review of Particle Properties. Phys. Lett. B, 592:1–1109, 2004. S. Elitzur: Impossibility of spontaneously breaking local gauge theories. Phys. , D12:3978–3982, 1975. H. Epstein and V.

6 For the fact that some relational properties come in bundles is no guarantee for that bundle to describe the intrinsic nature of a physical entity. In the following we give a short historical sketch of concepts which we think are not only the roots of structural realism7 but are also the basis for a semiotic approach going further than structural realism. We start with the theory of signs (symbols) of Hermann von Helmholtz and Heinrich Hertz and then find some further development in the works of Henri Poincar´e and Hermann Weyl.

Thus, for instance, a weather cock is an indexical sign of the wind since it is turned by the wind into its direction. A symbol on the other hand lacks such a cause and effect relationship. Its meaning is based on a conventional regularity as, for instance, is our use of the word ‘strawberries’ to refer to strawberries. For obviously there is neither any causal relation nor any resemblance between the string of letters in ‘strawberries’ and those red and eatable objects. Also the relation between a quantised field, the essential ingredient of the theory and a particle, on which the interpretation of experiments is based on, can be very indirect, as discussed in the preceding chapter.

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Quantum Field Theory in a Semiotic Perspective by Hans Günter Dosch

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