Suppression of collision-induced dephasing by periodic, erratic, or noisy driving
arXiv:1209.4498 · doi:10.1140/epjst/e2013-01771-9
Abstract
We compare different driving scenarios for controlling the loss of single particle coherence of an initially coherent preparation in the vicinity of the hyperbolic instability of the two-mode bose-Hubbard model. In particular we contrast the quantum Zeno suppression of decoherence by broad-band erratic or noisy driving, with the Kapitza effect obtained for high frequency periodic monochromatic driving.
6 pages, 3 figures
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