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Virtual Processes and Quantum Tunnelling as Fictions

Richard T. W. Arthur

Science & Education 21 (10):1461-1473 (2012)

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Virtuality in Modern Physics in the 1920s and 1930s: Meaning(s) of an Emerging Notion.Jean-Philippe Martinez - 2024 - Perspectives on Science 32 (3):350-371.details This article discusses the meaning of the notion of virtuality in modern physics. To this end, it develops considerations on the introduction and establishment in nuclear physics of two independent concepts at the turn of the 1920s and 1930s: that of the virtual state, used in the context of neutron scattering studies, and that of the virtual transition, useful for the theoretical understanding of strong nuclear forces, which forms the basis of what are now called virtual particles. Their comparative analysis (...) Download Export citation Bookmark
Understanding, Virtually: How Does the Synthetic Cell Matter?Daphne Broeks, Tarja Knuuttila & Henk de Regt - 2024 - Perspectives on Science 32 (3):394-414.details This paper examines how scientific understanding is enhanced by virtual entities, focusing on the case of the synthetic cell. Comparing it to other virtual entities and environments in science, we argue that the synthetic cell has a virtual dimension, in that it is functionally similar to living cells, though it does not mimic any particular naturally evolved cell (nor is it constructed to do so). In being cell-like at most, the synthetic cell is akin to many other virtual objects as (...) Download Export citation Bookmark
How to Study Virtual Entities Historically? A Proposal.Markus Ehberger - 2024 - Perspectives on Science 32 (3):278-299.details This paper will not present a case study of the historical development of a virtual entity. Rather, I will develop an outlook on virtual entities in the sciences and propose a corresponding method for studying them (historically). In essence, my presentation can be considered a synthesis of different observations from the history and philosophy of science and has its roots in my dissertational research on the development of the virtual particle. Starting with a reflection on the role of presentism for (...) Download Export citation Bookmark
On the interpretation of Feynman diagrams, or, did the LHC experiments observe H → γγ?Oliver Passon - 2019 - European Journal for Philosophy of Science 9 (2):20.details According to the received view Feynman diagrams are a bookkeeping device in complex perturbative calculations. Thus, they do not provide a representation or model of the underlying physical process. This view is in apparent tension with scientific practice in high energy physics, which analyses its data in terms of “channels”. For example the Higgs discovery was based on the observation of the decay H → γγ – a process which can be easily represented by the corresponding Feynman diagrams. I take (...) Download Export citation Bookmark 4 citations

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