Qprop-ND：强场激光物理Qprop软件包的非偶极扩展
Qprop-ND: A Nondipole Extension of the Qprop Package for Strong-Field Laser Physics
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中文总结 AI 辅助
将Qprop 3.0扩展为Qprop-ND，纳入非偶极效应，用于模拟强场原子现象，如阈上电离、电离稳定化和高次谐波产生，并通过示例验证了其有效性和准确性。
中文摘要 AI 辅助
Qprop 3.0软件包用于求解激光场和原子势中电子的含时薛定谔方程，现扩展以纳入与激光波传播相关的非偶极效应。所开发的代码可用于模拟非偶极区域中的强场原子现象，例如阈上电离、高频激光场中的电离稳定化、高次谐波产生，当与磁场相关的效应不可忽略或激光波长与原子尺寸相当时。与偶极Qprop类似，波函数在球谐函数中展开，波函数的时间传播采用Crank-Nicolson方法，光电子谱采用t-SURFF或i-SURFV方法计算。通过几个示例验证了该实现的有效性和准确性。
英文摘要
The Qprop 3.0 package for the solution of the time-dependent Schrödinger equation for an electron in a laser field and atomic potential is extended to incorporate nondipole effects related to the laser wave propagation. The developed code can be used for the simulation of strong field atomic phenomena in the nondipole regime, such as above-threshold ionization, ionization stabilization in high-frequency laser fields, high-order harmonic generation, when the effects connected with the magnetic field are non-negligible or when the laser wavelength is comparable with the atomic size. Similar to the dipole Qprop the wave function is expanded in spherical harmonics, the time-propagation of the wave functions is performed using the Crank- Nicolson approach, and the photoelectron spectra are calculated employing the t-SURFF or i- SURFV methods. The validity and accuracy of the implementation are demonstrated through several illustrative examples.
发表机构
- Max Planck Institute for Nuclear Physics（马克斯·普朗克核物理研究所）
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