https://ri.ufs.br/jspui/handle/riufs/2467 Sun, 03 May 2026 22:46:24 GMT 2026-05-03T22:46:24Z https://ri.ufs.br/jspui/handle/riufs/24928 Título: Caracterização das propriedades estruturais e magnéticas da série SmF e1−xMnxO3 Autor(es): Silva, Cláudia Adriana da Abstract: Continuar depois... Fri, 10 Feb 2012 00:00:00 GMT https://ri.ufs.br/jspui/handle/riufs/24928 2012-02-10T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/24067 Título: Estudo da dinâmica de partículas confinadas fluindo em sentidos contrários Autor(es): Santos, Kaique Silva Abstract: In this work a computational study was made to understand how the potential of interaction with a system of particles can influence the progress in its system. In confined particle systems flowing toward contraction is what has increased the risk of carrying an orderly state with zero fluency, the results were revealed in the Dirk Helbing article titled Heating Freezing in a Mesoscopic Powered System. In this case, the freezing phenomenon can be called freezing by heating, it can be more than a year with the same effect of temperature, and in this case, with higher total energy. In this work we apply a system that provides two distinct impulses, polynomial potential and Yukawa potential, where the former has a higher growth with decreasing distance. We thus conclude with the best sources of energy to establish a solid state when interacting through a potential that has a higher growth for the short-range interactions. Another example of order studied this work is called kepp-left, where it simulates the behavior of pedesthes in questions of extreme panger (amplitude of somence sound). For this type of end phenomenon, we conclude that an asymmetric wave can be made two bands of continuous motion where the flow is not maintained. It is determined that this example can be reproduced in specific situations directly from asymmetric confinement screens and environmental density. Wed, 27 Feb 2019 00:00:00 GMT https://ri.ufs.br/jspui/handle/riufs/24067 2019-02-27T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/23150 Título: Dinâmica de Langmuir e exclusão de volume em cadeias lineares via formalismo do espaço de Fock Autor(es): Silva, Luis Davi Santos Abstract: The totally asymmetric simple exclusion process (TASEP) and Langmuir dynamics (LK) are classically studied via stochastic methods such as mean field approximations or Monte Carlo simulations. In this work, we propose an alternative approach based on mapping the master equation to a Schrödinger-type equation in Fock space, using second quantization operators. This formalism allows an exact description of stochastic dynamics in finite linear chains, capturing fluctuations neglected by traditional methods. We investigate competitive regimes between TASEP and LK that can lead the system to a non-trivial steady state of lattice occupation density, with parameters controlled by input, output, and diffusion rates. Our results reveal the formation of domain walls, separating regions of high and low density, whose location differs from mean field predictions. Statistical signatures in cumulants (mean, variance, skewness, kurtosis) and joint moments (⟨ni , nj ⟩), highlighting amplified fluctuations in central sites when LK exists. Phase transitions in purely TASEP systems, consistent with known results. The numerical implementation, based on the diagonalization of the quasi-Hamiltonian operator (2 k × 2 k for k = 10 sites),highlighted computational challenges inherent to the method. This work not only validates the applicability of Fock space in combined diffusion problems, but also paves the way for studies of systems with non-Markovian interactions or two-dimensional geometries. In addition, our method offers perspectives for biological systems (e.g., ribosome transport with stochastic binding of tRNA) and materials (adsorption of nanoparticles in nanotubes), where spatial exclusion effects and competitive adsorption are critical. Mon, 21 Jul 2025 00:00:00 GMT https://ri.ufs.br/jspui/handle/riufs/23150 2025-07-21T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/23099 Título: Difusão clássica em cadeias lineares com exclusão de volume e resetting utilizando as técnicas do espaço de Fock Autor(es): Macedo, Enoque Ferreira Abstract: The effects of resetting in random search processes include backwardness in process completion, asymmetries in the diffusion process, overcrowding, and the origin of the optimization problem of first-pass time moments in stochastic physical systems. Besides, the exploration of resetting in stochastic dynamics has the ability to model human and animal search behavior, robotic explorations that depend on resetting strategies, protein searches on DNA, among others. In this context, we will make use of the Fock space formalism, which allows us to use second quantization operators adapted to the classical scenario with the aim of including the resetting process into classical diffusion in linear chains with volume exclusion. From this point, we explore a series of physical implications resulting from this inclusion, as well as the creation of optimization strategies. Tue, 22 Jul 2025 00:00:00 GMT https://ri.ufs.br/jspui/handle/riufs/23099 2025-07-22T00:00:00Z