Unitary time-dependent superconvergent technique for pulse-driven quantum dynamics

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dc.creatorDaems, D.
dc.creatorKeller, A.
dc.creatorGuérin, S.
dc.creatorJauslin, H. -R.
dc.creatorAtabek, O.
dc.date2003-01-17
dc.date.accessioned2026-07-07T06:05:55Z
dc.date.available2026-07-07T06:05:55Z
dc.descriptionWe present a superconvergent Kolmogorov-Arnold-Moser type of perturbation theory for time-dependent Hamiltonians. It is strictly unitary upon truncation at an arbitrary order and not restricted to periodic or quasiperiodic Hamiltonians. Moreover, for pulse-driven systems we construct explicitly the KAM transformations involved in the iterative procedure. The technique is illustrated on a two-level model perturbed by a pulsed interaction for which we obtain convergence all the way from the sudden regime to the opposite adiabatic regime.
dc.description10 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0301092
dc.identifierhttp://arxiv.org/abs/quant-ph/0301092
dc.identifierPhys. Rev. A 67, 052505 (2003)
dc.identifierdoi:10.1103/PhysRevA.67.052505
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/90802
dc.subjectQuantum Physics
dc.titleUnitary time-dependent superconvergent technique for pulse-driven quantum dynamics
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