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Article Dans Une Revue EPL - Europhysics Letters Année : 2006

Scattering-induced dynamical entanglement and the quantum-classical correspondence

Résumé

The generation of entanglement produced by a local potential interaction in a bipartite system is investigated. The degree of entanglement is contrasted with the underlying classical dynamics for a Rydberg molecule (a charged particle colliding on a kicked top). Entanglement is seen to depend on the structure of classical phase-space rather than on the global dynamical regime. As a consequence, regular classical dynamics can in certain circumstances be associated with higher entanglement generation than chaotic dynamics. In addition, quantum effects also come into play: for example, partial revivals, which are expected to persist in the semiclassical limit, affect the long-time behaviour of the reduced linear entropy. These results suggest that entanglement may not be a pertinent universal signature of chaos.
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Dates et versions

hal-00961255 , version 1 (19-03-2014)

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Maurice Lombardi, A. Matzkin. Scattering-induced dynamical entanglement and the quantum-classical correspondence. EPL - Europhysics Letters, 2006, 74, pp.771. ⟨10.1209/epl/i2006-10028-6⟩. ⟨hal-00961255⟩
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