Super Bloch oscillations with modulated interaction
arXiv:1212.1405 · doi:10.1103/PhysRevA.87.015601
Abstract
We study super Bloch oscillations of ultracold atoms in a shaken lattice potential, subjected to a harmonically modulated mean-field interaction. Usually, any interaction leads to the decay of the wave packet and its super Bloch oscillation. Here, we use the phases of interaction and shaking with respect to the free Bloch oscillation as control parameters. We find two types of long-living cases: (i) suppression of the immediate broadening of the wave packet, and (ii) dynamical stability of all degrees of freedom. The latter relies on the rather robust symmetry argument of cyclic time [Gaul et al., Phys. Rev. A 84, 053627 (2011)].
4 pages, 4 figures
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Cited by in corpus (6)
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- Two bosonic quantum walkers in one-dimensional optical lattices
- Faraday and Resonant Waves in Dipolar Cigar-Shaped Bose-Einstein Condensates
- Transport controlled by Poincaré orbit topology in a driven inhomogeneous lattice gas
- Generalized Bloch oscillations of ultracold lattice atoms subject to higher-order gradients
- Chirped Bloch-Harmonic oscillations in a parametrically forced optical lattice