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dc.title Nonlinear effects on the dynamics of quantum harmonic modes coupled through angular momentum en
dc.type Artículo es
dcterms.abstract We investigate nonlinear effects on the dynamics of entanglement and other quantum observables in a system of two harmonic modes coupled through angular momentum. The nonlinearity arises from a Kerr-type anharmonic term in each mode. The emergence and evolution of entanglement, non-Gaussianity, photon number, photon antibunching and squeezing are examined for different initial coherent product states and couplings, through exact diagonalization in a truncated basis. It is shown that the anharmonic terms, even if weak, can lead to very significant effects for such initial states, considerably enhancing and stabilizing entanglement and leading to a non negligible non-Gaussianity of the evolved states. They also affect other observables, stabilizing the dynamics after an initial transient regime, for not too small initial average populations of each mode. Analytic short-time approximate expressions are also provided. en
dcterms.issued 2020-10-07
dcterms.language Inglés es
dcterms.license Attribution-NonCommercial-NoDerivatives 4.0 Internacional es
dcterms.subject Quantum dynamics en
dcterms.subject coupled harmonic modes en
dcterms.subject nonlinear effects en
dcterms.subject quantum entanglement en
cic.version info:eu-repo/semantics/submittedVersion es Canosa, N. es Rossignoli, Raúl Dante es García, J. es Mandal, Swapan es Saha, K. Chandra es
cic.lugarDesarrollo Universidad Nacional de La Plata es
dcterms.subject.materia Ciencias Físicas es
dcterms.identifier.url Recurso completo es
dcterms.isPartOf.issue vol. 53 es
dcterms.isPartOf.series Journal of Physics B es
cic.isPeerReviewed true es
cic.isFulltext true es


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