The British Journal for the Philosophy of Science Advance Access originally published online on June 4, 2009
The British Journal for the Philosophy of Science 2009 60(3):557-584; doi:10.1093/bjps/axp015
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Time Reversal in Classical Electromagnetism
University College Oxford, UK frank.arntzenius{at}philosophy.ox.ac.uk
Merton College Oxford, UK hilary.greaves{at}merton.ox.ac.uk
| Abstract |
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Richard Feynman has claimed that anti-particles are nothing but particles propagating backwards in time; that time reversing a particle state always turns it into the corresponding anti-particle state. According to standard quantum field theory textbooks this is not so: time reversal does not turn particles into anti-particles. Feynman's view is interesting because, in particular, it suggests a non-standard, and possibly illuminating, interpretation of the CPT theorem. This paper explores a classical analog of Feynman's view, in the context of the recent debate between David Albert and David Malament over time reversal in classical electromagnetism.
- Introduction
- Time Reversal and the Direction of Time
- Classical Electromagnetism: The Story So Far
- 3.1 The standard textbook view
- 3.2 Albert's proposal
- 3.3 Malament's proposal
- 3.4 Albert revisited
- 3.2 Albert's proposal
- 3.1 The standard textbook view
- The Feynman Proposal
- Structuralism: A Third Way?
- 5.1 Structures: the debate recast
- 5.2 Relational structures
- 5.3 Malament and Feynman structures as conventional representors of a relational reality
- 5.2 Relational structures
- 5.1 Structures: the debate recast
- Conclusions and Open Questions