Bohmian mechanics to high-order harmonic generation |
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| Authors: | Lai Xuan-Yang Cai Qing-Yu Zhan Ming-Sheng |
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| Affiliation: | State Key Laboratory of Magnetic Resonances and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071, China; Graduate University of the Chinese Academy of Sciences, Beijing 100190, China; Centre for Cold Atom Physics, The Chinese Academy of Sciences, Wuhan 430071, China |
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| Abstract: | This paper introduces Bohmian mechanics (BM) into theintense laser-atom physics to study high-order harmonic generation.In BM, the trajectories of atomic electron in an intense laser field canbe obtained with the Bohm--Newton equation. The power spectrum with thetrajectory of an atomic electron is calculated, which is found to be irregular. Next, the power spectrum associated with an atomensemble from BM is considered, where the power spectrum becomesregular and consistent with that from quantum mechanics. Finally,the reason of the generation of the irregular spectrum is discussed. |
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| Keywords: | Bohmian mechanics high-order harmonicgeneration |
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