Browsing by Author "Cartes, Carlos"
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Item 33(33, 33) Cisternas, Jaime; Cartes, Carlos; Descalzi, Orazio; Albers, Tony; Radons, Günter; 33The propagation of light pulses in dual-core nonlinear optical fibers is studied using a model proposed by Sakaguchi and Malomed. The system consists of a supercritical complex Ginzburg-Landau equation coupled to a linear equation. Our analysis includes single standing and walking solitons as well as walking trains of 3, 5, 6, and 12 solitons. For the characterization of the different scenarios, we used ensemble-averaged square displacement of the soliton trajectories and time-averaged power spectrum of the background waves. Power law spectra, indicative of turbulence, were found to be associated with random walks. The number of solitons (or their separations) can trigger anomalous random walks or totally suppress the background waves.Item 33(33, 33) Cartes, Carlos; Asahi, Kenzo; Fernández, Rodrigo; 33Social disturbances due to socioeconomic and political factors received media attention during 2019 in places like France, Hong Kong, Chile, Nigeria, Sudan, Haiti, and Lebanon. In October 2019, Chile saw massive demonstrations in the capital city of Santiago. The cost of damage to infrastructure during the first month of unrest was estimated at US$ 4.6 billion, and the cost to the Chilean economy was about US$ 3 billion, 1.1% of its Gross Domestic Product. This study analyzes how the topology of the public transport network affected the locations of the 2019 riots in Santiago. On average, we find a clear association between proximity to the subway network and riot density. This association is significant only in neighborhoods with residents in the highest and lowest income quartiles. As a result, when analyzing social unrest and the critical role of public transport, policymakers should also consider the crucial role of income.Item Characterization of time-dependence for dissipative solitons stabilized by nonlinear gradient terms: Periodic and quasiperiodic vs chaotic behaviorDescalzi, Orazio; Facão, M.; Cartes, Carlos; Carvalho, M. I.; Brand, Helmut R.Item Dissipative pulses stabilized by nonlinear gradient terms: A review of their dynamics and their interactionDescalzi, Orazio; Facão, M.; Carvalho, M. I.; Cartes, Carlos; Brand, Helmut R.Item Interaction of dissipative solitons stabilized by nonlinear gradient termsDescalzi, Orazio; Cartes, Carlos; Brand, Helmut R.Item Multiplicative noise can induce a velocity change of propagating dissipative solitonsDescalzi, Orazio; Cartes, Carlos; Brand, Helmut R.Item Oscillatory dissipative solitons stabilized by nonlinear gradient terms: The transition to localized spatiotemporal disorderDescalzi, Orazio; Cartes, Carlos; Brand, Helmut R.Item Periodic exploding dissipative solitons /(Cartes, Carlos) Cartes, CarlosMostramos la existencia de solitones disipativos explosivos periódicos. Estas explosiones no caóticas aparecen cuando se agregan efectos no lineales y dispersivos de orden superior a la compleja ecuación de Ginzburg-Landau cúbico-quíntico que modela láseres de solitón de fibra. Este fenómeno contraintuitivo es el resultado de la bifurcación de la mitad del período que conduce al orden (explosiones periódicas), seguido de la bifurcación de la duplicación del período que conduce al caos (explosiones caóticas).Item Riots and subways, a relationship moderated by the neighborhood’s income level /(Cartes, Carlos) Cartes, CarlosLos disturbios sociales debido a factores socioeconómicos y políticos recibieron la atención de los medios durante 2019 en lugares como Francia, Hong Kong, Chile, Nigeria, Sudán, Haití y Líbano. En octubre de 2019, Chile vio manifestaciones masivas en la ciudad capital de Santiago. El costo de los daños a la infraestructura durante el primer mes de disturbios se estimó en US$ 4.600 millones, y el costo para la economía chilena fue de alrededor de US$ 3.000 millones, el 1,1% de su Producto Interno Bruto. Este estudio analiza cómo la topología de la red de transporte público afectó las ubicaciones de los disturbios de 2019 en Santiago. En promedio, encontramos una clara asociación entre la proximidad a la red de metro y la densidad de disturbios. Esta asociación es significativa solo en barrios con residentes en los cuartiles de ingresos más altos y más bajos. Como resultado, al analizar el malestar social y el rol crítico del transporte público, los formuladores de políticas también deben considerar el rol crucial de los ingresos.