V. The Semiclassical Foldy-Wouthuysen Transformation and the Derivation of the Bloch Equation for Spin-1/2 Polarised Beams Using Wigner Functions
Abstract
A semiclassical Foldy--Wouthuysen transformation of the Dirac equation is used to obtain the radiationless Bloch equation for the polarisation density.
- Publication:
-
arXiv e-prints
- Pub Date:
- January 1999
- DOI:
- 10.48550/arXiv.physics/9901044
- arXiv:
- arXiv:physics/9901044
- Bibcode:
- 1999physics...1044H
- Keywords:
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- Physics - Accelerator Physics;
- Physics - Classical Physics;
- Quantum Physics
- E-Print:
- 7 pages. No figures. Latex. Paper 5 of a set of 5. others are physics/9901038 physics/9901041 physics/9901042 physics/9901043