##IMG## [http://ej.iop.org/images/0953-4075/53/17/174002/bab9999ieqn1.gif] {${\mathrm{H}}_{2}^{+}$} exposed to strong mid-infrared laser pulses undergoes the tunneling ionization, followed by the rescattering of the photoelectron with the parent ion. The two nuclei repel each other during the tunneling and rescattering, which modifies the Coulomb potential experienced by the rescattering electron. We numerically study the role of the nuclear movement in the tunneling ionization of hydrogen molecular ions. The classical trajectory Monte-Carlo simulations give intuitive explanations of photoelectron momentum distributions driven by laser pulses having different wavelengths and different intensities. The competition of the Coulomb attraction and the Lorentz push determines the photoelectron momentum distribution along the laser propagation direction. The nuclear movement modifies the Coulomb focusing, and thus shifts the peaks of the photoelectron momentum di...

中文翻译：

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原子核运动在氢分子离子隧穿电离中的作用超过偶极近似

## IMG ## [http://ej.iop.org/images/0953-4075/53/17/174002/bab9999ieqn1.gif] {$ {\ mathrm {H}} _ {2} ^ {+} $ }暴露在强中红外激光脉冲中的电子会发生隧穿电离，然后光电子与母体离子一起重新散射。在隧穿和散射期间，两个原子核互相排斥，从而改变了散射电子所经历的库仑电势。我们数值研究核运动在氢分子离子隧穿电离中的作用。经典轨迹的蒙特卡洛模拟给出了由具有不同波长和强度的激光脉冲驱动的光电子动量分布的直观解释。库仑引力和洛伦兹推力的竞争决定了沿激光传播方向的光电子动量分布。