Synthesizing dispersion relations in a modulated tilted optical lattice - Archive ouverte HAL
Article Dans Une Revue Physical Review A Année : 2022

Synthesizing dispersion relations in a modulated tilted optical lattice

Résumé

Dispersion relations are fundamental characteristics of the dynamics of quantum and wave systems. In this work we introduce a simple technique to generate arbitrary dispersion relations in a modulated tilted lattice. The technique is illustrated by important examples: the Dirac, Bogoliubov and Landau dispersion relations (the latter exhibiting the roton and the maxon). We show that adding a slow chirp to the lattice modulation allows one to reconstruct the dispersion relation from dynamical quantities. Finally, we generalize the technique to higher dimensions, and generate graphene-like Dirac points and flat bands in two dimensions.

Dates et versions

hal-03299419 , version 1 (26-07-2021)

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Jean-Claude Garreau, Véronique Zehnlé. Synthesizing dispersion relations in a modulated tilted optical lattice. Physical Review A, 2022, ⟨10.1103/PhysRevA.105.013318⟩. ⟨hal-03299419⟩
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