6533b853fe1ef96bd12ac2ac
RESEARCH PRODUCT
Pulse-driven quantum dynamics beyond the impulsive regime
Arne KellerStéphane GuérinHans-rudolf JauslinOsman AtabekDavid Daemssubject
PhysicsQuantum Physicssymbols.namesakeClassical mechanicsQuantum dynamicsHilbert spacesymbolsFOS: Physical sciencesPerturbation (astronomy)Quantum Physics (quant-ph)Unitary stateAtomic and Molecular Physics and Opticsdescription
We review various unitary time-dependent perturbation theories and compare them formally and numerically. We show that the Kolmogorov-Arnold-Moser technique performs better owing to both the superexponential character of correction terms and the possibility to optimize the accuracy of a given level of approximation which is explored in details here. As an illustration, we consider a two-level system driven by short pulses beyond the sudden limit.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-01-15 | Physical Review A |