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Journal Article

Spin Dynamics in the Kapitza-Dirac Effect

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons37673

Ahrens,  Sven
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30283

Bauke,  Heiko
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30659

Keitel,  Christoph H.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

Müller,  Carsten
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;
Institut für Theoretische Physik I, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany;

Fulltext (public)

1204.0239v2
(Preprint), 454KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Ahrens, S., Bauke, H., Keitel, C. H., & Müller, C. (2012). Spin Dynamics in the Kapitza-Dirac Effect. Physical Review Letters, 109(4): 043601, pp. 1-5. doi:10.1103/PhysRevLett.109.043601.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-C6AA-4
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.