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Electronic Wave Packet in a Quantized Electromagnetic Field |
CHENG Tai-Wang;XUE Yan-Li;LI Xiao-Feng;WU Ling-An;FU Pan-Ming |
Laboratory of Optical Physics, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080 |
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Cite this article: |
CHENG Tai-Wang, XUE Yan-Li, LI Xiao-Feng et al 2002 Chin. Phys. Lett. 19 1792-1794 |
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Abstract We study a non-stationary electronic wave packet in a quantized
electromagnetic field. Generally, the electron and field become
entangled as the electronic wave packet evolves. Here we find that, when the initial photon state is a coherent one, the wavefunction of the system can be factorized if we neglect the transferred photon number. In this case, the quantized-field calculation is equivalent to the semi-classical calculation.
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Keywords:
32.80.Rm
42.50.Ct
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Published: 01 December 2002
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PACS: |
32.80.Rm
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(Multiphoton ionization and excitation to highly excited states)
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42.50.Ct
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(Quantum description of interaction of light and matter; related experiments)
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