极端的电磁场可以加速原子核的α衰变吗？,Physical Review Letters

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极端的电磁场可以加速原子核的α衰变吗？
Physical Review Letters ( IF 8.1 ) Pub Date : 2020-05-28 , DOI: 10.1103/physrevlett.124.212505
Adriana Pálffy ₁ , Sergey V Popruzhenko _{2,

3}

Affiliation

控制的可能性

α

从理论上研究了在数瓦特和十亿瓦特的激光设施中设想在不久的将来具有极强电磁场的原子核的衰变通道。使用基于Wentzel-Kramers-Brillouin近似的解析参数和数值计算的虚时法在框架中的应用。

α

衰减前聚类模型，我们显示没有实验可检测到的修改

α

衰减率可以在任何可用波长的超强激光下观察到。将我们的预测与最近几篇出版物中报道的预测相比较，在这些出版物中已经声称相当大甚至什至是巨大的激光诱导的衰减率，我们在那里发现了标准近似的误用。

"点击查看英文标题和摘要"

Can Extreme Electromagnetic Fields Accelerate the α Decay of Nuclei?

The possibility to control the

α

decay channel of atomic nuclei with electromagnetic fields of extreme intensities envisaged for the near future at multipetawatt and exawatt laser facilities is investigated theoretically. Using both analytic arguments based on the Wentzel-Kramers-Brillouin approximation and numerical calculations for the imaginary time method applied in the framework of the

α

decay precluster model, we show that no experimentally detectable modification of the

α

decay rate can be observed with super-intense lasers at any so-far-available wavelength. Comparing our predictions with those reported in several recent publications, where a considerable or even giant laser-induced enhancement of the decay rate has been claimed, we identify there the misuse of a standard approximation.

更新日期：2020-05-28

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