Suppression of collision-induced dephasing by periodic, erratic, or noisy driving
1 Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
2 Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
Revised: 15 January 2013
Published online: 11 March 2013
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.
© EDP Sciences, Springer-Verlag, 2013