- 97-211 Vincenzo Grecchi, Andrea Sacchetti
- Lifetime of the Wannier-Stark resonances and perturbation theory
Apr 14, 97
(auto. generated ps),
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Abstract. We consider the small field asymptotics of the lifetime of metastable states in
Wannier-Stark problems. Assuming that at zero field we have Bloch operators
with only the first gap open and using the regular perturbation theory, we
that the behavior of the lifetime computed by means of the Fermi Golden Rule
is proportional to the correct one with the factor $(\pi /3)^2$. The
adiabatic problems is briefly discussed.
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