Robustness of topologically sensitive harmonic generation in laser-driven linear chains
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arXiv
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| Formato: | Preprint |
| Publicado: |
2019
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| _version_ | 1866910290207047680 |
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| author | Drüeke, Helena Bauer, Dieter |
| author_facet | Drüeke, Helena Bauer, Dieter |
| contents | A huge difference in the harmonic yield from the two topological phases of finite, dimerizing linear chains in laser fields has recently been observed in all-electron time-dependent density functional simulations [D. Bauer, K.K. Hansen, Phys. Rev. Lett. 120, 177401 (2018)]. In this work, we explore the robustness of the effect concerning the size of the chains, a continuous transition between the two topological phases, and disorder. A high robustness of both the degeneracy of the edge states in the topologically non-trivial phase and of the pronounced destructive interference causing a dip in the harmonic spectra in the topologically trivial phase is observed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1901_01437 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Robustness of topologically sensitive harmonic generation in laser-driven linear chains Drüeke, Helena Bauer, Dieter Atomic Physics Optics A huge difference in the harmonic yield from the two topological phases of finite, dimerizing linear chains in laser fields has recently been observed in all-electron time-dependent density functional simulations [D. Bauer, K.K. Hansen, Phys. Rev. Lett. 120, 177401 (2018)]. In this work, we explore the robustness of the effect concerning the size of the chains, a continuous transition between the two topological phases, and disorder. A high robustness of both the degeneracy of the edge states in the topologically non-trivial phase and of the pronounced destructive interference causing a dip in the harmonic spectra in the topologically trivial phase is observed. |
| title | Robustness of topologically sensitive harmonic generation in laser-driven linear chains |
| topic | Atomic Physics Optics |
| url | https://arxiv.org/abs/1901.01437 |