## Wannier-Stark states of a quantum particle in 2D lattices

• A simple method of calculating the Wannier-Stark resonances in 2D lattices is suggested. Using this method we calculate the complex Wannier-Stark spectrum for a non-separable 2D potential realized in optical lattices and analyze its general structure. The dependence of the lifetime of Wannier-Stark states on the direction of the static field (relative to the crystallographic axis of the lattice) is briefly discussed.

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Author: M. Glück, F. Keck, A. R. Kolovsky, H. J. Korsch urn:nbn:de:hbz:386-kluedo-11117 Article English 2000 2000 Technische Universität Kaiserslautern Quantum mechanics ; Wannier-Stark systems ; lifetimes ; resonances ; two-dimensional Fachbereich Physik 530 Physik

$Rev: 12793$