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Now showing items 11-20 of 45
Monovacâncias em grafite por cálculos de primeiros princípios
(Universidade Federal de São Carlos, 2007-02-26)
Caracterização magnética de filmes de cromo e cromocobalto preparados por eletrodeposição
(Universidade Federal de São Carlos, 2008-12-11)
Magnetic properties of electrodeposited of chromium and chromium-cobalt thin films on cooper substrate were investigated. The samples were prepared without introduction of additives. This procedure following to samples ...
Cálculos de primeiros princípios para BaO.
(Universidade Federal de São Carlos, 2005-02-28)
In this work we present first principles calculations with Density Functional Theory,
DFT, using norm-conserving pseudopotentials. Initially, we perform calculations
of structural properties for metallic barium, Ba, in the ...
Equação mestra não-linear aplicada ao estudo de bioestabilidade óptica.
(Universidade Federal de São Carlos, 2004-08-12)
In this dissertation, we present a generalized master equation for a system of N two-
level atoms pumped by a classical field, interacting with a reservoir. The kinds of reservoirs
are assumed: (a) thermal, (b) squeezed ...
O estudo do limite de transporte interfilamentar de supercorrentes em amostras supercondutoras de BSCCO.
(Universidade Federal de São Carlos, 2006-03-15)
In this work, we have studied the behavior of the line H*(T) in filamentary samples of BSCCO, which were grown by the LFZ technique, Laser Floating Zone. Previously studied in other specimens prepared by specific routes ...
Um modelo consistente para o processo de fotocontagem contínua e medidas de emaranhamento de sistemas quânticos de variáveis contínuas.
(Universidade Federal de São Carlos, 2005-02-10)
This dissertation embraces two trends of research in modern quantum optics. The first of
them is connected to the photodetection theory, particularly to the continuous measurement
theory developed by Srinivas and Davies ...
Estudo do modelo de Rabi no contexto de sistemas quânticos abertos
(Universidade Federal de São Carlos, 2009-01-27)
The Rabi Hamiltonian describes the interaction between a two-level atom and a single mode of the quantized electromagnetic field. In this work we study numerically and analytically the dynamics of the Rabi hamiltonian ...
Estudo das técnicas de obtenção de Hamiltonianos efetivos em Óptica Quântica
(Universidade Federal de São Carlos, 2009-02-18)
In the Quantum Optics area, the construction of effective hamiltonian is a matter of great importance, since from them we can generate and manipulate quantum states and logical operations. In this work we discuss 3 approximate ...
Modelagem, simulação e otimização de transformadores piezoelétricos de modo radial para aplicações em conversão de potência
(Universidade Federal de São Carlos, 2008-11-26)
This work seeks to improve the modeling, analysis and the optimization of the parameters of piezoelectric transformer (PT) built with polarized Pb(Zr,Ti)O3 electro-ceramics for applications in power conversion, as well as ...
Estudo experimental e numérico da força de levitação magnética em supercondutores de alta temperatura crítica
(Universidade Federal de São Carlos, 2009-09-30)
In this research work we propose, in general, to address the issue of magnetic levitation force between a superconducting material and a permanent magnet. This is a very current and relevant mainly from a technological ...