Enhancement of electron-positron pairs in combined potential wells with
linear chirp frequency
- URL: http://arxiv.org/abs/2109.05399v1
- Date: Sun, 12 Sep 2021 01:46:52 GMT
- Title: Enhancement of electron-positron pairs in combined potential wells with
linear chirp frequency
- Authors: Li Wang, Lie-Juan Li, Melike Mohamedsedik, Rong An, Jing-Jing Li,
Bai-Song Xie and Feng-Shou Zhang
- Abstract summary: Frequency modulation has a significant enhancement effect on the number of electrons.
The number of electrons created by high frequency oscillating combined potential wells decreases after frequency modulation.
- Score: 9.337258764904773
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The effect of linear chirp frequency on the process of electron-positron
pairs production from vacuum in the combined potential wells is investigated by
computational quantum field theory. Numerical results of electron number and
energy spectrum under different frequency modulation parameters are obtained.
By comparing with the fixed frequency, it is found that frequency modulation
has a significant enhancement effect on the number of electrons. Especially
when the frequency is small, appropriate frequency modulation enhances
multiphoton processes in pair creation, thus promoting the pair creation.
However, the number of electrons created by high frequency oscillating combined
potential wells decreases after frequency modulation due to the phenomenon of
high frequency suppression. The contours of the number of electrons varying
with frequency and frequency modulation parameters are given, which may provide
theoretical reference for possible experiments.
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