Chin. Phys. Lett.  1999, Vol. 16 Issue (12): 888-890    DOI:
Original Articles |
Quantum Electrodynamic Perspective on Multiphoton Ionization
CHEN Jing1,2;CHEN Shi-gang1;LIU Jie1
1Institute of Applied Physics and Computational Mathematics, Beijing 100088 2Graduate School of China Academy of Engineering Physics, P. O. Box 2101, Beijing 100088
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CHEN Jing, CHEN Shi-gang, LIU Jie 1999 Chin. Phys. Lett. 16 888-890
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Abstract A fully quantum nonperturbative method is developed to describe multiphoton ionization in intense fields. It is shown that, treating the radiation field with quantum electrodynamic(QED) theory enables u s to obtain the above-threshold ionization energy distribution spectrum in analytical form firstly. Moreover, in addition to the well-known semiclassical theory, the framework presented here, derived from a QED perspective, provides a new picture of the multiphoton ionization.
Keywords: 32.80.Rm      32.80.-t      03.70.+k     
Published: 01 December 1999
PACS:  32.80.Rm (Multiphoton ionization and excitation to highly excited states)  
  32.80.-t (Photoionization and excitation)  
  03.70.+k (Theory of quantized fields)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1999/V16/I12/0888
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