Browsing by Title Facultad de Ciencias
Now showing items 5414-5433 of 8186
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(2009)We analyze the existence and stability of nonlinear modes localized at phase-slip waveguide channels and their intersections in two-dimensional photonic lattices with rectangular symmetry. While in linear lattices only one ...
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(OPTICAL SOC AMER, 2008-05-01)We study light localization at a phase-slip defect created by two semi-infinite mismatched identical arrays of coupled optical waveguides. We demonstrate that the nonlinear defect modes possess the specific properties of ...
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(2011)Modulational instability and discrete matter wave solitons in dipolar BECs, loaded into a deep optical lattice, are investigated analytically and numerically. The process of modulational instability of nonlinear plane ...
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Nonlinear localized modes in dipolar Bose-Einstein condensates in two-dimensional optical lattices (Elsevier B.V., 2016)© 2016 Elsevier B.V. We analyze the existence and properties of discrete localized excitations in a Bose-Einstein condensate loaded into a periodic two-dimensional optical lattice, when a dipolar interaction between atoms ...
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Nonlinear localized modes in dipolar Bose–Einstein condensates in two-dimensional optical lattices (Elsevier Science BV., 2016)We analyze the existence and properties of discrete localized excitations in a Bose-Einstein condensate loaded into a periodic two-dimensional optical lattice, when a dipolar interaction between atoms is present. The ...
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(American Physical Society, 2015)We study existence, stability, and dynamics of linear and nonlinear stationary modes propagating in radially symmetric multicore waveguides with balanced gain and loss.We demonstrate that, in general, the system can ...
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(Elsevier, 2016)We investigate the propagation dynamics of highly localized discrete breather modes in a weak ferromagnetic spin lattice with on-site easy axis anisotropy due to crystal field effect. We derive the discrete nonlinear ...
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(Elsevier Ltd, 2017)© 2017 Elsevier B.V. In this work, the linear and nonlinear optical properties of a series of octupolar Zn(II) complexes with highly aromatic polypyridine ligands are investigated. The effect of the metal center on the ...
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(2005)We examine the formation of bound states on a generalized nonlinear impurity located at or near the beginning (surface) of a linear, tight-binding semi-infinite lattice. Using the formalism of lattice Green functions, we ...
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(2006)We examine the formation of localized states on a generalized nonlinear impurity located at or near the surface of a semi-infinite two-dimensional (2D) square lattice. Using the formalism of lattice Green functions, we ...
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(Elsevier, 2020)We prove that a linear nonautonomous differential system with nonuniform hyperbolicity on the half line can be written as diagonal system with a perturbation which is small enough. Moreover we show that the diagonal terms ...
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(Universidad de Cadiz, 2017)The present study, based on 54 co-constructed narratives of couples living in Santiago de Chile, investigates patterns of nonverbal regulators in structural sequences initiation of conversation narratives in relation to ...
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(Universidad de Chile, 1982)
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(1981)Normal coordinate analysis of C3Cl4and C3I4has been carried out on the basis of general valen ce force field, using Wilson's FG matrix method. Approximate vibrational frequencies are calculated from very simple force field ...
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(1986)A normal coordinates analysis for the M(NH3)42+ complex ions iN Td symmetry (M = Zn, Cd, Co) and in D4h symmetry (M = Cu, Pd, Pt) has been undertaken on the basis of a General Valence Force Field (GVFF), using simplified ...
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(1983)A normal coordinates analysis for the hexamminochro mium (III) ion, in octahedral symmetry has been underta ken. A simplified M(NX) model has been adopted, since many of the gerade vibrational frequencies are still un ...
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(2012)The Notch signalling pathway regulates several aspects of cellular differentiation such as T lineage commitment and effector functions on peripheral T cells; however, there is limited information regarding Notch receptor ...
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(Universidad de Concepcion, 2011)We report some aspects of the floral biology of Echinopsis chiloensis ssp. chiloensis in a population near to the northern limit of its distribution. Anthesis is strictly diurnal and flowers remain open during 492 min on ...
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(Cell, 2020)The spine is a defining feature of the vertebrate body plan. However, broad differences in vertebral structures and morphogenetic strategies occur across vertebrate groups, clouding the homology between their developmental ...