论文标题
激烈的X射线激光诱导的晕Halo核发射
Intense X-ray laser-induced proton emission from halo nuclei
论文作者
论文摘要
我们研究了非扰动量子$ s $ -matrix方法的X射线激光诱导的X射线激光诱导的质子发射。我们通过分析推导了角度差异以及质子排放的总多光子速率。对于线性极化的X射线激光场，我们发现质子发射的角度分布敏感地取决于激光频率，并显示出有趣的花瓣结构，并增加了激光频率以及吸收的光子的数量。同时，我们发现质子和剩余核之间的库仑排斥力对质子发射的总多光子速率具有很强的阻碍作用，并导致多光子过渡频率的蓝移。此外，还解决了激光场对质子发射总速率的极化影响。我们发现，与总速率最大相对应的极化椭圆度取决于激光频率，显示从扰动到非扰动质子发射的过渡。上述发现的基本机制被发现，并讨论了一些含义。
We investigate the intense X-ray laser-induced proton emission from halo nuclei within the framework of a nonperturbative quantum $S$-matrix approach. We have analytically deduced the angular differential as well as the total multi-photon rates of the proton emissions. For a linearly polarized X-ray laser field, we find that the angular distributions of proton emission sensitively depend on the laser frequency and show an interesting petal structure with increasing the laser frequency as well as the number of absorbed photons. Meanwhile, we find the Coulomb repulsion potential between the proton and the remainder nucleus has a strong hindering effect on the total multi-photon rates of the proton emissions and leads to the blue shifts of the multi-photon transition frequency. Moreover, the polarization effects of laser fields on total rates of proton emission have also been addressed. We find that the polarized ellipticity corresponding to the maximum of the total rates depend on the laser frequency showing a transition from perturbative to nonperturbative proton emission. The underlying mechanism of the above findings is uncovered, and some implications are discussed.
