On the XFEL Schrödinger Equation: Highly Oscillatory Magnetic Potentials and Time Averaging
Type
ArticleKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionApplied Mathematics and Computational Science Program
Date
2014-01-14Preprint Posting Date
2012-09-26Online Publication Date
2014-01-14Print Publication Date
2014-03Permanent link to this record
http://hdl.handle.net/10754/563339
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Show full item recordAbstract
We analyse a nonlinear Schrödinger equation for the time-evolution of the wave function of an electron beam, interacting selfconsistently through a Hartree-Fock nonlinearity and through the repulsive Coulomb interaction of an atomic nucleus. The electrons are supposed to move under the action of a time dependent, rapidly periodically oscillating electromagnetic potential. This can be considered a simplified effective single particle model for an X-ray free electron laser. We prove the existence and uniqueness for the Cauchy problem and the convergence of wave-functions to corresponding solutions of a Schrödinger equation with a time-averaged Coulomb potential in the high frequency limit for the oscillations of the electromagnetic potential. © 2014 Springer-Verlag Berlin Heidelberg.Citation
Antonelli, P., Athanassoulis, A., Hajaiej, H., & Markowich, P. (2014). On the XFEL Schrödinger Equation: Highly Oscillatory Magnetic Potentials and Time Averaging. Archive for Rational Mechanics and Analysis, 211(3), 711–732. doi:10.1007/s00205-013-0715-8Sponsors
P. Antonelli and A. Athanassoulis would like to thank the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge for its hospitality and support during the preparation of this work. This research was supported by the Investigator Award Nr. KUK-I1-007-43 funded by the King Abdullah University of Science and Technology. H. Hajaiej extends his appreciation to the deanship of scientific research at King Saud University through the research group project RGP-VPP124.Publisher
Springer NaturearXiv
1209.6089Additional Links
http://arxiv.org/abs/arXiv:1209.6089v1ae974a485f413a2113503eed53cd6c53
10.1007/s00205-013-0715-8