# Particles, fields, and the measurement of electron spin

@article{Sebens2021ParticlesFA, title={Particles, fields, and the measurement of electron spin}, author={Charles T. Sebens}, journal={Synthese}, year={2021}, volume={198}, pages={11943-11975} }

This article compares treatments of the Stern–Gerlach experiment across different physical theories, building up to a novel analysis of electron spin measurement in the context of classical Dirac field theory. Modeling the electron as a classical rigid body or point particle, we can explain why the entire electron is always found at just one location on the detector (uniqueness) but we cannot explain why there are only two locations where the electron is ever found (discreteness). Using non…

## 5 Citations

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## References

SHOWING 1-10 OF 101 REFERENCES

On Bohmian Mechanics, Particle Creation, and Relativistic Space-Time: Happy 100th Birthday, David Bohm!

- PhysicsEntropy
- 2018

Some more recent developments and extensions of Bohmian mechanics are described, concerning in particular relativistic space-time and particle creation and annihilation.

Studies in History and Philosophy of Modern Physics

- Philosophy, Physics
- 2018

Recent discussions of emergence in physics have focussed on the use of limiting relations, and often particularly on singular or asymptotic limits. We discuss a putative example of emergence that…

Inconsistency, Asymmetry, and Non-Locality: A Philosophical Investigation of Classical Electrodynamics

- Philosophy
- 2005

Mathias Frisch provides the first sustained philosophical discussion of conceptual problems in classical particle-field theories. Part of the book focuses on the problem of a satisfactory equation of…

Quantum mechanics and experience

- Physics
- 1992

Superposition the mathematical formalism and the standard way of thinking about it nonlocality the measurement problem the collapse of the wave function the dynamics by itself Bohm's theory…

Classical charged particles

- Physics
- 1965

Philosophy and Logic of Physical Theory A Short History of the Classical Theory of Charged Particles Foundations of Classical Mechanics The Maxwell-Lorentz Field Electromagnetic Radiation The Charged…

How electrons spin

- PhysicsStudies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
- 2019

On Magnetic Forces and Work

- PhysicsFoundations of Physics
- 2021

In this letter, we review a manifestly covariant Lagrangian formulation for the dynamics of a classical particle with intrinsic spin and elementary electric and magnetic dipole moments. We then…