论文标题
稻米模型中的高谐波产生：内标的作用来自带间过渡的作用
High-harmonic generation in the Rice-Mele model: Role of intraband current originating from interband transition
论文作者
论文摘要
我们考虑稻米模型中的高谐波产生（HHG），以研究源自内电流的作用，源自带有带的偶极子通过带间跃迁的变化。这项贡献在以前的作品中经常被忽略，对于光 - 婚姻耦合的一致理论表述是必不可少的。我们证明，当差距小于或与激发频率相当并且系统接近半填充时，贡献变得至关重要。
We consider high-harmonic generation (HHG) in the Rice-Mele model to study the role of the intraband current originating from the change of the intraband dipole via interband transition. This contribution, which has been often neglected in previous works, is necessary for the consistent theoretical formulation of the light-matter coupling. We demonstrate that the contribution becomes crucial when the gap is smaller than or comparable to the excitation frequency and the system is close to the half filling.
