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Free-electron quantum signatures in intense laser fields

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

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

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

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Citation

Mahmoudi, M., Salamin, Y. I., & Keitel, C. H. (2005). Free-electron quantum signatures in intense laser fields. Physical Review A, 72(3): 033402. doi:10.1103/PhysRevA.72.033402.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-8839-B
Abstract
Quantum signatures of a free electron in interaction with a continuous-wave radiation field are investigated by looking for negativities in the Wigner function of the system. The free-electron wave function in the radiation field is calculated fully analytically by solving the appropriate Schrödinger equation in the Krammers-Henneberger frame. It is found that pronounced quantum signatures show up already for a laser peak field of magnitude E0=1–2 a.u. and a frequency omega=1 a.u. However, the nonclassical behavior gets lost if the interaction with the radiation field is taken in the dipole approximation.