Entanglement Across a Transition to Quantum Chaos

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dc.creatorMejia-Monasterio, Carlos
dc.creatorBenenti, Giuliano
dc.creatorCarlo, Gabriel G.
dc.creatorCasati, Giulio
dc.date2004-10-29
dc.date2005-03-11
dc.date.accessioned2026-07-07T06:11:23Z
dc.date.available2026-07-07T06:11:23Z
dc.descriptionWe study the relation between entanglement and quantum chaos in one- and two-dimensional spin-1/2 lattice models, which exhibit mixing of the noninteracting eigenfunctions and transition from integrability to quantum chaos. Contrary to what occurs in a quantum phase transition, the onset of quantum chaos is not a property of the ground state but take place for any typical many-spin quantum state. We study bipartite and pairwise entanglement measures, namely the reduced Von Neumann entropy and the concurrence, and discuss quantum entanglement sharing. Our results suggest that the behavior of the entanglement is related to the mixing of the eigenfunctions rather than to the transition to chaos.
dc.description14 pages, 14 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0410246
dc.identifierhttp://arxiv.org/abs/quant-ph/0410246
dc.identifierPhys. Rev. A 71, 062324 (2005)
dc.identifierdoi:10.1103/PhysRevA.71.062324
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/92471
dc.subjectQuantum Physics
dc.subjectStatistical Mechanics
dc.subjectChaotic Dynamics
dc.titleEntanglement Across a Transition to Quantum Chaos
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