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Chinese Physics Letters

Electronic Wave Packet in a Quantized Electromagnetic Field

Taiwang Cheng, Yan-Li Xue, Li Xiao-Feng, Ling-An Wu, Panming Fu

Published Nov 21, 2002• 3 citations
Publisher

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.

DOI
10.1088/0256-307x/19/12/315

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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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