Engineered quantum tunnelling in extended periodic potentials

2007/05/01 by Sandro Wimberger, Donatella Ciampini, Oliver Morsch +3
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Mechanics and Applications #Quantum chaos and dynamical systems #cond-mat.other

paper · pdf · doi:10.1088/1742-6596/67/1/012060

published as 2007 J. Phys.: Conf. Ser. 67 012060 (6pp) · 6 pp, proceedings DICE 11-15 September 2006, Castello di Piombino, Tuscany, Italy

openalex publication_date 2007/05/01 · arxiv created 2007/06/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

Quantum tunnelling from a tilted, but otherwise periodic potential is studied. Our theoretical and experimental results show that, by controlling the system's parameters, we can engineer the escape rate of a Bose-Einstein condensate to an exceptional degree. Possible applications of this atom-optics realization of the open Wannier-Stark system are discussed.

Citations

• Bloch Oscillations and Mean-Field Effects of Bose-Einstein Condensates in 1D Optical Lattices
• Nonlinearity-induced destruction of resonant tunneling in the Wannier-Stark problem
• Formation of Spatial Shell Structure in the Superfluid to Mott Insulator Transition
• Wannier-Stark resonances in optical and semiconductor superlattices