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Unified Strong-Field Dynamics Simulations from Atoms to Heterostructures — arXiv:2608.18472

Source: arXiv (en)
Original: https://arxiv.org/abs/2608.18472
License (as archived): CC0-1.0
Archived: 2026-10-18T14:12:44.720Z
SHA-256 of the archived text: 13c34fe109dd87acd43ed26e1e7c64634a54d0b1cdaec82f1112bbf8c6c6f21c
Stable URL of this page: https://metraipolis.com/documento/dc_e5c8d09efbc4

How to cite

Unified Strong-Field Dynamics Simulations from Atoms to Heterostructures — arXiv:2608.18472 — arXiv (en), https://arxiv.org/abs/2608.18472 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_e5c8d09efbc4 (Metraipolis archive dc_e5c8d09efbc4, sha256 13c34fe109dd87acd43ed26e1e7c64634a54d0b1cdaec82f1112bbf8c6c6f21c)

BibTeX

@misc{dce5c8d09efbc4,
  title = {Unified Strong-Field Dynamics Simulations from Atoms to Heterostructures — arXiv:2608.18472},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2608.18472},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_e5c8d09efbc4; sha256 13c34fe109dd87acd43ed26e1e7c64634a54d0b1cdaec82f1112bbf8c6c6f21c},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2608.18472. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

We present \textsc{TDSE-Z}, a high-performance open-source framework for strong-field quantum dynamics in atomic, molecular, and semiconductor effective-mass systems. The core engine implements a weak-form Galerkin discretisation of the Hermitian BenDaniel-Duke operator, $\hat{T}_{\mathrm{BDD}} = -\frac{1}{2}\nabla\cdot(m^{-1}(\mathbf{r})\nabla)$, on geometry-adapted B-spline meshes, supporting arbitrary potentials and customisable laser configurations in one to three dimensions. We validate the static position-dependent-mass (PDM) eigensolver through two stringent benchmarks: a comparison to the analytical Quesne PDM model and a $\text{GaAs/Al}_{0.3}\text{Ga}_{0.7}\text{As}$ double quantum well, where the exponential decay of computed tunnel splittings follows Wentzel-Kramers-Brillouin (WKB) theory at the sub-percent level. We further demonstrate the time-propagation engine on constant-mass systems, accurately reproducing high-harmonic generation (HHG) spectra in atomic benchmarks and confirming the importance of dimensionality in fully capturing the strong light-matter interaction. Our implementation demonstrates robust strong-scaling efficiency, maintaining performance across hundreds of CPU cores. While the static eigensolver currently supports optional GPU offloading, the time-propagation engine is CPU-optimised, providing a modular architecture for future expansion toward exascale quantum dynamics.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-08-20 in quant-ph).
Categorie arXiv: Quantum Physics (quant-ph) ; Atomic and Molecular Clusters (physics.atm-clus); Computational Physics (physics.comp-ph).
Pagina del lavoro: https://arxiv.org/abs/2608.18472 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-18T14:10:23.794Z dalla pagina https://arxiv.org/catchup/quant-ph/2026-08-20?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).