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  The Kapitza-Dirac effect in the relativistic regime

Ahrens, S., Bauke, H., Keitel, C. H., & Müller, C. (2013). The Kapitza-Dirac effect in the relativistic regime. Physical Review A, 88(1): 012115, pp. 1-14. doi:10.1103/PhysRevA.88.012115.

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1305.5507v2.pdf (Preprint), 2MB
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1305.5507v2.pdf
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minor corrections. File downloaded from arXiv at 2013-08-20.
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http://pra.aps.org/abstract/PRA/v88/i1/e012115 (Publisher version)
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 Creators:
Ahrens, Sven1, Author           
Bauke, Heiko1, Author           
Keitel, Christoph H.1, Author           
Müller, Carsten1, 2, Author           
Affiliations:
1Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society, ou_904546              
2Institut für Theoretische Physik I, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany, ou_persistent22              

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Free keywords: Physics, Atomic Physics, physics.atom-ph
 Abstract: A relativistic description of the Kapitza-Dirac effect in the so-called Bragg regime with two and three interacting photons is presented by investigating both numerical and perturbative solutions of the Dirac equation in momentum space. We demonstrate that spin-flips can be observed in the two-photon and the three-photon Kapitza-Dirac effect for certain parameters. During the interaction with the laser field the electron's spin is rotated, and we give explicit expressions for the rotation axis and the rotation angle. The off-resonant Kapitza-Dirac effect, that is, when the Bragg condition is not exactly fulfilled, is described by a generalized Rabi theory. We also analyze the in-field quantum dynamics as obtained from the numerical solution of the Dirac equation.

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 Dates: 2013-05-232013-07-162013-07-15
 Publication Status: Published online
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 Rev. Type: Peer
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Title: Physical Review A
  Other : Phys. Rev. A
Source Genre: Journal
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Publ. Info: New York, NY : Published by the American Physical Society through the American Institute of Physics
Pages: 14 Volume / Issue: 88 (1) Sequence Number: 012115 Start / End Page: 1 - 14 Identifier: ISSN: 1050-2947
CoNE: https://pure.mpg.de/cone/journals/resource/954925225012_2