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Spin dynamics in the Kapitza-Dirac effect.
- Source :
-
Physical review letters [Phys Rev Lett] 2012 Jul 27; Vol. 109 (4), pp. 043601. Date of Electronic Publication: 2012 Jul 23. - Publication Year :
- 2012
-
Abstract
- Electron spin dynamics in Kapitza-Dirac scattering from a standing laser wave of high frequency and high intensity is studied. We develop a fully relativistic quantum theory of the electron motion based on the time-dependent Dirac equation. Distinct spin dynamics, with Rabi oscillations and complete spin-flip transitions, is demonstrated for Kapitza-Dirac scattering involving three photons in a parameter regime accessible to future high-power x-ray laser sources. The Rabi frequency and, thus, the diffraction pattern is shown to depend crucially on the spin degree of freedom.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 109
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 23006086
- Full Text :
- https://doi.org/10.1103/PhysRevLett.109.043601