Blum, Alexander S. and Fraser, James D. (2025) Perturbative Causality. Synthese. ISSN 1573-0964
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Abstract
This paper examines the development of causal perturbation theory, a reformulation of perturbative quantum theory (QFT) starting from a causality condition rather than a time-evolution equation. We situate this program alongside other causality-based reformulations of relativistic quantum theory which flourished in the post-war period, contrasting it in particular with axiomatic QFT. Whereas the axiomatic QFT tradition tried to move beyond the perturbative expansion, causal perturbation theory can be thought of as a foundational investigation of this approximation method itself. Otur reconstruction of this forgotten research program offers new perspectives on contemporary debates about relativistic causality conditions and the problem of ultraviolet divergences.
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| Item Type: | Published Article or Volume | |||||||||
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| Keywords: | Quantum field theory, Approximation, Causality | |||||||||
| Subjects: | General Issues > Causation General Issues > Models and Idealization Specific Sciences > Physics > Quantum Field Theory |
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| Depositing User: | Mr James Fraser | |||||||||
| Date Deposited: | 25 May 2025 13:17 | |||||||||
| Last Modified: | 25 May 2025 13:17 | |||||||||
| Item ID: | 25439 | |||||||||
| Journal or Publication Title: | Synthese | |||||||||
| Publisher: | Springer (Springer Science+Business Media B.V.) | |||||||||
| Subjects: | General Issues > Causation General Issues > Models and Idealization Specific Sciences > Physics > Quantum Field Theory |
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| Date: | 23 May 2025 | |||||||||
| ISSN: | 1573-0964 | |||||||||
| URI: | https://philsci-archive.pitt.edu/id/eprint/25439 |
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Perturbative Causality. (deposited 13 Oct 2024 12:28)
- Perturbative Causality. (deposited 25 May 2025 13:17) [Currently Displayed]
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