Bloch oscillations in lattice potentials with controlled aperiodicity

Abstract

We numerically investigate the damping of Bloch oscillations in a one-dimensional lattice potential whose translational symmetry is broken in a systematic manner, either by making the potential bichromatic or by introducing scatterers at distinct lattice sites. We find that the damping strongly depends on the ratio of lattice constants in the bichromatic potential, and that even a small concentration of scatterers can lead to strong damping. Moreover, mean-field interactions are able to counteract aperiodicity-induced damping of Bloch oscillations.

9 pages, 6 figures

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Cited by in corpus (8)

• Fibonacci optical lattices for tunable quantum quasicrystals
• Many-body quantum dynamics of initially trapped systems due to a Stark potential --- thermalization vs. Bloch oscillations
• Superfluid Bloch dynamics in an incommensurate lattice
• Bloch-Landau-Zener oscillations in a quasi-periodic potential
• Control and amplification of Bloch oscillations via photon-mediated interactions
• Generalized Bloch oscillations of ultracold lattice atoms subject to higher-order gradients
• Bloch-Landau-Zener Oscillations in Moiré Lattices
• Modulation stabilization of Bloch oscillations of two-component Bose-Einstein condensates in optical lattices