### Abstract

Original language | English (US) |
---|---|

Title of host publication | Recent Developments in the Philosophy of Science: EPSA13 Helsinki |

Publisher | Springer |

State | Published - 2015 |

### Publication series

Name | European Studies in Philosophy of Science |
---|---|

Publisher | Springer |

Volume | 1 |

### Fingerprint

### Keywords

- Axiomatic quantum field theory
- Heuristic quantum field theory
- CPT theorem

### Cite this

*Recent Developments in the Philosophy of Science: EPSA13 Helsinki*(European Studies in Philosophy of Science; Vol. 1). Springer .

**Pragmatists and Purists on CPT Invariance in Relativistic Quantum Field Theories.** / Bain, Jonathan.

Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed)

*Recent Developments in the Philosophy of Science: EPSA13 Helsinki.*European Studies in Philosophy of Science, vol. 1, Springer .

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TY - CHAP

T1 - Pragmatists and Purists on CPT Invariance in Relativistic Quantum Field Theories

AU - Bain, Jonathan

PY - 2015

Y1 - 2015

N2 - An influential claim in the physics literature states that the violation of CPT invariance in an interacting RQFT entails the violation of Lorentz invariance. This claim is surprising since standard proofs of the CPT theorem require more assumptions than Lorentz invariance, and are restricted to non-interacting, or at best, unrealistic interacting theories. This essay analyzes this claim in the context of the debate between pragmatist approaches to RQFTs, which trade mathematical rigor for the ability to derive predictions from realistic interacting theories, and purist approaches, which trade the ability to formulate realistic interacting theories for mathematical rigor.

AB - An influential claim in the physics literature states that the violation of CPT invariance in an interacting RQFT entails the violation of Lorentz invariance. This claim is surprising since standard proofs of the CPT theorem require more assumptions than Lorentz invariance, and are restricted to non-interacting, or at best, unrealistic interacting theories. This essay analyzes this claim in the context of the debate between pragmatist approaches to RQFTs, which trade mathematical rigor for the ability to derive predictions from realistic interacting theories, and purist approaches, which trade the ability to formulate realistic interacting theories for mathematical rigor.

KW - Axiomatic quantum field theory

KW - Heuristic quantum field theory

KW - CPT theorem

M3 - Chapter (peer-reviewed)

T3 - European Studies in Philosophy of Science

BT - Recent Developments in the Philosophy of Science: EPSA13 Helsinki

PB - Springer

ER -