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  Real Virtuality and Actual Transitions: Historical Reflections on Virtual Entities before Quantum Field Theory

Blum, A. S., & Jähnert, M. (2024). Real Virtuality and Actual Transitions: Historical Reflections on Virtual Entities before Quantum Field Theory. Perspectives on Science, 32(3), 329-349. doi:10.1162/posc_a_00609.

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blum_2024_real_virtuality.pdf (Publisher version), 140KB
 
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 Creators:
Blum, Alexander S.1, Author           
Jähnert, Martin1, Author           
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1Max Planck Research Group Historical Epistemology of the Final Theory Program, Max Planck Institute for the History of Science, Max Planck Society, ou_2497696              

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 Abstract: This paper studies the notion of virtuality in the Bohr-Kramers-Slater theory of 1924. We situate the virtual entities of BKS within the tradition of the correspondence principle and the radiation theory of the Bohr model. We show how, in this context, virtual oscillators emerged as classical substitute radiators and were used to describe the otherwise elusive quantum transitions. They played an effective role in the quantum theory of radiation while remaining categorically distinct and ontologically separated from the quantum world of the Bohr model. The notion of virtuality thus differs markedly from its counterpart in quantum mechanics or QFT.

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Language(s): eng - English
 Dates: 2024
 Publication Status: Published online
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 Identifiers: DOI: 10.1162/posc_a_00609
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Title: Perspectives on Science
Source Genre: Journal
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Publ. Info: MIT Press
Pages: - Volume / Issue: 32 (3) Sequence Number: - Start / End Page: 329 - 349 Identifier: ISBN: 1063-6145