Doctorat en Física Computacional i Aplicada
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Articles de revista [117]
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Reports de recerca [240]
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Singular cotangent models in fluids with dissipation
(2023-04)
Article
Open AccessIn this article we analyze several mathematical models with singularities where the classical cotangent model is replaced by a -cotangent model. We provide physical interpretations of the singular symplectic geometry ... -
Analysis of the epidemiological dynamic of monkeypox from 15th May to 31st August 2022
(2022-09-01)
Article
Open AccessWe show that in all countries with more than 1000 monkeypox cases at the end of August 2022, the evolution of the total number of cases is described by the Gompertz growth model. Although the data collection has many ... -
Light control by Non-Hermitian modulation in multimode fiber
(META Conference, 2022)
Conference report
Open AccessWe show that a non-Hermitian modulation of the potential along the nonlinear multimode fibers controls dynamics of propagating radiation. Specifically we consider simultaneous modulation of the refraction index and gain/loss ... -
Low-energy scattering parameters: A theoretical derivation of the effective range and scattering length for arbitrary angular momentum
(AMER INST PHYSICS, 2023-02-01)
Article
Restricted access - publisher's policyThe most important parameters in the study of low-energy scattering are the s-wave and p-wave scattering lengths and the s-wave effective range. We solve the scattering problem and find two useful formulas for the scattering ... -
Non-Hermitian Mode Cleaning in Periodically Modulated Multimode Fibers
(2022-11-23)
Research report
Open AccessWe show that the simultaneous modulation of the propagation constant and of the gain/loss coefficient along the multimode fibers results in unidirectional coupling among the modes, which, depending on the modulation ... -
Abrupt transition from low-coherence to high-coherence radiation in a semiconductor laser with optical feedback
(2023-01-19)
Article
Open AccessSemiconductor lasers are very sensitive to optical feedback. Although it is well known that coherent feedback lowers the threshold of the laser, the characteristics of the transition from low-coherence radiation—dominated ... -
Stabilisation of spatially periodic states by non-Hermitian potentials
(2023-03)
Article
Restricted access - publisher's policyWe uncover new families of stable periodic solutions by the introduction of non-Hermitian potentials in the universal complex Ginzburg–Landau equation. We perform a comprehensive analysis on the dynamics and stability of ... -
Non-Hermitian control of optical turbulence in systems with fractional dispersion
(Elsevier, 2022-12-01)
Article
Open AccessWe show an efficient mechanism to control optical turbulence in systems with different dispersion laws, including parabolic, sub-diffractive, hyper-diffractive or general fractional dispersion. The method is based on the ... -
Second and third harmonic generation from gold nanolayers: experiment versus theory
(EPJ Web of Conferences, 2021)
Conference report
Open AccessThe use of semiconductors, metals, or ordinary dielectrics in the process of fabrication of nanodevices is at the front edge of nowadays technology, exploiting the properties of light propagation and localization at ... -
Comparative study between the effects of autumn and winter rainfall on aerobiological variables in the NE of the Iberian Peninsula
(Springer, 2023-01-02)
Part of book or chapter of book
Restricted access - publisher's policyThe correlation analysis between precipitation indices and aerobiological variables could lead to different results if seasonal rainfall is considered. The number of significant correlations, as well as the ratio of ... -
An Approach for Reduction of Cross-Talk in Multi-core Optical Fibers
(Springer, 2020-04-29)
Part of book or chapter of book
Restricted access - publisher's policyMulti-core fiber (MCF) is a practical approach to realize space division multiplexing for high-capacity transmission in optical communication system. However, a major impairment toward increasing core density to enhance ... -
Análisis de escala simple de veinticinco años de registros de la red pluviométrica de Barcelona
(Real Sociedad Española de Física (RSEF), 2022)
Conference lecture
Open AccessEl área metropolitana de Barcelona, de aproximadamente 100 Km2 de extensión, dispone de una red densa de pluviómetros de balancín que se empezó a instalar en 1983, y ha ido siendo gestionada desde entonces por diferentes ...
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