| ATOMIC AND MOLECULAR PHYSICS |
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Theoretical Exploration of the Isotopic Effect on Nuclear Dynamics in Coulomb Explosion |
| SHI Hao-Ting, MIAO Xiang-Yang** |
College of Physics and Information Engineering, Shanxi Normal University, Linfen 041004
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| Cite this article: |
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SHI Hao-Ting, MIAO Xiang-Yang 2013 Chin. Phys. Lett. 30 063101 |
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Abstract The isotopic effect on nuclear dynamics in Coulomb explosion for various initial vibrational states of H2+ and HD+ in intense laser (80 fs, 800 nm, I=6.8×1013 W/cm2) is theoretically investigated by numerically solving the time-dependent Schr?dinger equation. The calculated results confirm that the effect we discussed by paying close attention to the comparative analysis of peak locations in the nuclear kinetic-energy-release spectra largely depends on the selection of the initial vibrational states. Furthermore, it is the special isotope effect case about the vibrational state υ=5 that has been studied in depth. We also discuss the time-dependent spectrum at υ=7, which can reveal the difference in nuclear wavepacket motion between H2+ and HD+ in the time region in which charge-resonance enhanced ionization takes place.
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Received: 29 March 2013
Published: 31 May 2013
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| PACS: |
31.30.Gs
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(Hyperfine interactions and isotope effects)
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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33.80.Eh
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(Autoionization, photoionization, and photodetachment)
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