Connection Between Wave Functions in the Dirac and Foldy-Wouthuysen Representations
arXiv:math-ph/0612045 · doi:10.1134/S1547477108060034
Abstract
The connection between wave functions in the Dirac and Foldy-Wouthuysen representations is found. When the Foldy-Wouthuysen transformation is exact, upper spinors in two representations differ only by constant factors, and lower spinors in the Foldy-Wouthuysen representation are equal to zero.
7 pages