Nonlinearity-induced destruction of resonant tunneling in the Wannier-Stark problem

Year: 2005

Authors: Wimberger S., Mannella R., Morsch O., Arimondo E., Kolovsky A.R., Buchleitner A.

Autors Affiliation: Dipartimento di Fisica E. Fermi, CNR-INFM, Unversità di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy;
Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Str. 38, 01187 Dresden, Germany;
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russia

Abstract: We present detailed numerical results on the dynamics of a Bose-Einstein condensate in a tilted periodic optical lattice over many Bloch periods. We show that an increasing atom-atom interaction systematically affects coherent tunneling, and eventually destroys the resonant tunneling peaks.


Volume: 72 (6)      Pages from: 063610  to: 063610

KeyWords: Quantum tunneling; Cold atoms;
DOI: 10.1103/PhysRevA.72.063610

Citations: 44
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