Intense-laser-driven electron dynamics and high-order harmonic generation in solids including topological effects
| Autor: | Dieter Bauer, Christoph Jürß, Daniel Moos |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Atomic Physics (physics.atom-ph) FOS: Physical sciences Electron dynamics Discrete dipole approximation Laser Topology Electron velocity Physics - Atomic Physics law.invention law Lattice (order) Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Valence band High harmonic generation High order Quantum Physics (quant-ph) Optics (physics.optics) Physics - Optics |
| Zdroj: | Physical Review A. 102 |
| ISSN: | 2469-9934 2469-9926 |
| DOI: | 10.1103/physreva.102.053112 |
| Popis: | 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. 14 pages, 6 figures, RevTeX |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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