TY - JOUR
A1 - Glück, Markus
A1 - Michael, Hankel
A1 - Kolovsky, Andrey R.
A1 - Korsch, Hans Jürgen
T1 - Induced transitions between Wannier ladders
N2 - We study the transitions between the ground and excited Wannier states induced by a weak ac field. Because the upper Wannier states are several order of magnitude less stable than the ground states, these transitions decrease the global stability of the system characterized by the rate of probability leakage or decay rate. Using nonhermitian resonant perturbation theory we obtain an analytical expression for this induced decay rate. The analytical results are compared with exact numerical calculations of the system decay rate.
KW - Quantum mechanics
KW - Wannier-Stark systems
KW - decay rate
KW - nonhermitian perturbation theory
Y1 - 2000
UR - https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/1061
UR - https://nbn-resolving.org/urn:nbn:de:hbz:386-kluedo-10101
ER -