Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2006-06-20
Phys. Rev. C 74, 044601 (2006)
Physics
Nuclear Physics
Nuclear Theory
10 pages, 2 eps figures
Scientific paper
10.1103/PhysRevC.74.044601
The direct interaction of super-intense laser fields in the optical frequency domain with nuclei is studied. As main observable, we consider the nuclear AC-Stark shift of low-lying nuclear states due to the off-resonant excitation by the laser field. We include the case of accelerated nuclei to be able to control the frequency and the intensity of the laser field in the nuclear rest frame over a wide range of parameters. We find that AC-Stark shifts of the same order as in typical quantum optical systems relative to the respective transition frequencies are feasible with state-of-the-art or near-future laser field intensities and moderate acceleration of the target nuclei. Along with this shift, we find laser-induced modifications to the proton root-mean-square radii and to the proton density distribution. We thus expect direct laser-nucleus interaction to become of relevance together with other super-intense light-matter interaction processes such as pair creation.
Buervenich Thomas J.
Evers Joerg
Keitel Christoph H.
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