Issue |
EPL
Volume 135, Number 2, July 2021
|
|
---|---|---|
Article Number | 23001 | |
Number of page(s) | 5 | |
Section | Atomic, Molecular and Optical Physics | |
DOI | https://doi.org/10.1209/0295-5075/ac1649 | |
Published online | 28 September 2021 |
Quantum fluctuations in strong field ionization
Graduate School, China Academy of Engineering Physics - Beijing 100193, China
(a) daidejia19@gscaep.ac.cn (corresponding author)
(b) lbfu@gscaep.ac.cn
Received: 30 May 2021
Accepted: 20 July 2021
Based on the field quantization, the angular distribution of the ionization rate of hydrogen atoms with the effect of a finite number of photons is computed in this letter. We find that the angular distribution of the ionization rate will fluctuate with the initial photon number of the field, and have a peak value higher than that predicted by Keldysh-Faisal-Reiss theory. This ionization peak is the embodiment of quantum effect. Furthermore, our calculations show that the phenomenon of ionization peak also exists when the initial field state is a coherent state.
© 2021 EPLA
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