Aspects of Two-Level Systems under External Time Dependent Fields

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dc.creatorBagrov, V. G.
dc.creatorBarata, J. C. A.
dc.creatorGitman, D. M.
dc.creatorWreszinski, W. F.
dc.date2001-12-03
dc.date.accessioned2026-07-07T10:54:59Z
dc.date.available2026-07-07T10:54:59Z
dc.descriptionThe dynamics of two-level systems in time-dependent backgrounds is under consideration. We present some new exact solutions in special backgrounds decaying in time. On the other hand, following ideas of Feynman, Vernon and Hellwarth, we discuss in detail the possibility to reduce the quantum dynamics to a classical Hamiltonian system. This, in particular, opens the possibility to directly apply powerful methods of classical mechanics (e.g. KAM methods) to study the quantum system. Following such an approach, we draw conclusions of relevance for ``quantum chaos'' when the external background is periodic or quasi-periodic in time.
dc.descriptionTo appear in J. Phys. A. Mathematical and General
dc.identifierhttps://arxiv.org/abs/quant-ph/0112016
dc.identifierhttp://arxiv.org/abs/quant-ph/0112016
dc.identifierJ.Phys.A35:175,2002
dc.identifierdoi:10.1088/0305-4470/35/1/501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185981
dc.subjectQuantum Physics
dc.subjectHigh Energy Physics - Theory
dc.subjectMathematical Physics
dc.subjectOptics
dc.titleAspects of Two-Level Systems under External Time Dependent Fields
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