包含拓扑效应的固体中强激光驱动的电子动力学与高次谐波产生
Intense-laser driven electron dynamics and high-harmonic generation in solids including topological effects
AI总结：
本研究构建了含拓扑效应的二维格点固体激光驱动电子动力学与高次谐波产生理论，给出电子速度解析表达式，并验证了其在Su-Schrieffer-Heeger链和Haldane模型中的适用性。
摘要：
本文构建了一种适用于任意维度、每个晶胞含两个格点的体块固体的激光驱动电子动力学与高次谐波产生理论。在紧束缚近似下，这类固体可通过2×2布洛赫哈密顿量（Bloch-Hamiltonians）描述。由于未采用紧束缚近似、偶极近似及价带耗尽可忽略假设之外的简化，该理论能够完整捕捉此类系统高次谐波产生中的拓扑效应。文中给出了电子速度的显式解析表达式，并作为示例将该理论应用于强激光场中的Su-Schrieffer-Heeger链与Haldane模型。
英文摘要：
A theory for laser-driven electron dynamics and high-harmonic generation in bulk solids with two lattice sites per unit cell of arbitrary dimension is formulated. In tight-binding approximation, such solids can be described by $2\times 2$ Bloch-Hamiltonians. Our theory is able to fully capture topological effects in high-harmonic generation by such systems because no simplifications beyond tight-binding, dipole approximation, and negligible depletion of the valence band are made. An explicit, analytical expression for the electron velocity is given. Exemplarily, the theory is applied to the Su-Schrieffer-Heeger chain and the Haldane model in strong laser fields.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
