Connection between wave functions in the Dirac and Foldy-Wouthuysen representations |
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| Authors: | A J Silenko |
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| Institution: | (1) Institute of Nuclear Problems, Belarusian State University, Minsk, Belarus |
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| Abstract: | When the Foldy-Wouthuysen (FW) transformation is exact and the particle energy is positive, upper spinors in the Dirac and
FW representations differ only by a constant factor, and lower spinors in the FW representation are zero. Deducing FW wave
eigenfunctions directly from Dirac wave eigenfunctions allows one to use the FW representation to calculate expectation values
of needed operators and to derive quantum and semiclassical equations of motion.
The text was submitted by the author in English. |
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