Eur. Phys. J. Special Topics 217, 215-220 (2013)
https://doi.org/10.1140/epjst/e2013-01771-9

Regular Article

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

Received: 9 September 2012
Revised: 15 January 2013
Published online: 11 March 2013

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.