Intense-laser driven electron dynamics and high-harmonic generation in solids including topological effects
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| Main Authors: | , , |
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| Format: | Preprint |
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2020
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| _version_ | 1866914709492465664 |
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| author | Moos, Daniel Jürß, Hannah Bauer, Dieter |
| author_facet | Moos, Daniel Jürß, Hannah Bauer, Dieter |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2007_13434 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Intense-laser driven electron dynamics and high-harmonic generation in solids including topological effects Moos, Daniel Jürß, Hannah Bauer, Dieter Mesoscale and Nanoscale Physics Atomic Physics Optics Quantum Physics 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. |
| title | Intense-laser driven electron dynamics and high-harmonic generation in solids including topological effects |
| topic | Mesoscale and Nanoscale Physics Atomic Physics Optics Quantum Physics |
| url | https://arxiv.org/abs/2007.13434 |