V. The Semiclassical Foldy-Wouthuysen Transformation and the Derivation of the Bloch Equation for Spin-1/2 Polarised Beams Using Wigner Functions

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A semiclassical Foldy--Wouthuysen transformation of the Dirac equation is used to obtain the radiationless Bloch equation for the polarisation density.
7 pages. No figures. Latex. Paper 5 of a set of 5. others are physics/9901038 physics/9901041 physics/9901042 physics/9901043

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Accelerator Physics, Classical Physics, Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/87702

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/physics/9901044
 http://arxiv.org/abs/physics/9901044

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arXiv