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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Nonchaotic laser pulse dissociation through deformed tori

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de Lima, Emanuel F. [1] ; Egydio de Carvalho, R. [2] ; Forlevesi, M. D. [2]
Total Authors: 3
[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Estadual Paulista UNESP, IGCE, BR-13506900 Rio Claro, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Physical Review E; v. 101, n. 2 FEB 13 2020.
Web of Science Citations: 0

We consider the nonlinear classical dynamics of a diatomic molecule under the action of a laser field in the framework of the driven Morse oscillator model. We investigate the influence of the dipole function and the laser field on the deformations of the surviving, invariant tori. For intense and high-frequency fields, some invariant tori traverse the separatrix of motion, visiting both the bound and unbound regions of the interatomic potential. Based on this fact, we propose the use of appropriately designed laser pulses to induce dissociation of trajectories on such invariant tori. This mechanism constitutes a controlled nonchaotic route for dissociation, which is an alternative to chaotic multiphoton dissociation and to chirped pulse dissociation. (AU)

FAPESP's process: 14/23648-9 - Quantum control of ultracold matter
Grantee:Emanuel Fernandes de Lima
Support type: Regular Research Grants
FAPESP's process: 19/07329-4 - Analysis of the robustness of the shearless attractor (curve) and the quasi-periodic chaotic transition
Grantee:Ricardo Egydio de Carvalho
Support type: Regular Research Grants