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Raymond Eldred Siday (1912–1956) was an English mathematician specialising in quantum mechanics.
He was the brother of Eric Siday, a pioneer of electronic music.
Raymond Siday is most famous for the Ehrenberg-Siday effect.
Ehrenberg-Siday-Aharonov-Bohm effect
The Ehrenberg-Siday effect, later known as the Aharonov-Bohm effect, is a quantum mechanical phenomenon by which a charged particle is affected by electromagnetic fields in regions from which the particle is excluded. The earliest form of this effect was predicted by Werner Ehrenberg and R.E. Siday in 1949, and similar effects were later rediscovered by Aharonov and Bohm in 1959.
Such effects are predicted to arise from both magnetic fields and electric fields, but the magnetic version has been easier to observe. In general, the profound consequence of Aharonov-Bohm effects is that knowledge of the classical electromagnetic field acting locally on a particle is not sufficient to predict its quantum-mechanical behavior.
Selected papers
- Siday, R.E. (1942). "The determination of the optical properties of thick magnetic lenses, and the application of these lenses to beta-ray spectrometry". Proc. Phys. Soc. 54: 266–277. doi:.
- Siday, R.E. (1947). "The optical properties of axially symmetric magnetic prisms part 1: The study of rays in a plane of symmetry, and its application to the design of prism β-spectroscopes". Proc. Phys. Soc. 59: 905–917. doi:.
- Siday, R.E. (1947). "The Optical Properties of Axially Symmetric Magnetic Prisms". Proc. Phys. Soc. 59: 1036–1036. doi:.
- Ehrenberg, W.; Siday, R. E. (1949). "The Refractive Index in Electron Optics and the Principles of Dynamics". Proc. Phys. Soc. B62: 8–21. doi:.
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