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Colisões atômicas controladas em eletrodinâmica quântica de cavidades : emaranhamento como medida da classicalidade do campo de radiação
(Universidade Federal de São Carlos, 2009-08-12)
In this dissertation we presente a study on the entanglement between two identical and noninteracting
two-level atoms, generated by their interaction with only a singl cavity filed mode.
We also show how to calculate the ...
Dinâmica dissipativa em sistemas quânticos fortemente interagentes
(Universidade Federal de São Carlos, 2019-12-06)
In this thesis we investigate the dissipative dynamics in strongly interacting quantum
systems. The dissipative dynamics that we investigate has relevance in the generation
of non-classic states of light, such as the ...
Separação espacial de fases no modelo de seis vértices
(Universidade Federal de São Carlos, 2020-01-14)
In this work, we have studied the six-vertex model with domain wall and reflecting end boundary conditions, focusing mainly on the influence of boundary conditions on the thermodynamic limit. In order to find a complete ...
Análise de fenômenos críticos no modelo Rock-Paper-Scissors
(Universidade Federal de São Carlos, 2019-07-03)
This present work was developed with the purpose of analyzing critical phenomena in
the Rock-Paper-Scissors model, consisting of three species and the empty site, initially
distributed randomly in a square lattice, in ...
Propriedades magneto-óticas e de magneto-transporte de um diodo de tunelamento ressonante contendo Si δ - doping no poço quântico
(Universidade Federal de São Carlos, 2011-03-11)
In this work, we have studied the transport and optical properties of GaAs = AlGaAs resonant tunneling diodes with Si delta-doping at the center of the quantum well. We have studied magneto-transport and polarized resolved ...
Montagem de um sistema de micro-PL em baixas temperaturas para o estudo de semicondutores bidimensionais
(Universidade Federal de São Carlos, 2020-02-28)
Transition metal dicalcogenides (TMDs) are materials that have been attracted great attention in recent years, both from the point of view of fundamental physics and for a new generation of optoelectronic and spintronic ...
Formulações semiclássicas da mecânica quântica: uma análise do oscilador singular por meio do formalismo de Weyl-Wigner e trajetórias quânticas
(Universidade Federal de São Carlos, 2020-02-10)
The usual quantum mechanics formalism does not address relevant points of the semiclassical limit. In this work two theoretical approaches will be considered: Bohmian mechanics and the Weyl-Wigner formulation. The singular ...
Síntese e caraterização de MgxPb(1-x)TiO3
(Universidade Federal de São Carlos, 2015-08-14)
We report the investigation of structural, optical and electrical properties of the MgxPb(1-
x)TiO3 ceramic system produced by mechanosynthesis. The solid state reaction
manufacturing method has been proved to be an ...
Caracterização ótica de poços quânticos de GaMnAs
(Universidade Federal de São Carlos, 2007-09-12)
In this work, we have studied GaAs/AlAs/Ga1-xMnxAs quantum wells (QWs) with low Mn concentration ( 0 < x < 0,2%). The samples were grown by Molecular Beam Epitaxy (MBE) in high temperature (450 C). The growth conditions ...
Development of a stable diode laser system for cavity-assisted matter-wave interferometry
(Universidade Federal de São Carlos, 2020-08-27)
The project is part of an experiment that has been developed to probe the dynamics of ultracold strontium atoms in a vertical one-dimensional optical lattice sustained by a ring cavity. A fundamental part of the experiment ...