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Now showing items 11-20 of 109
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 ...
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 ...
Investigação das propriedades magnetoelásticas da ferrita de níquel : análise teórico-experimental
(Universidade Federal de São Carlos, 2018-02-21)
In this dissertation, we investigate the magnetoelastic properties of nickel ferrite compared
to the pure metal nickel, either by ab-initio calculation or through experiments using the
capactive cell technique. The first ...
Magneto luminescência em diodos de tunelamento ressonante contendo pontos quânticos de InAs
(Universidade Federal de São Carlos, 2011-03-15)
In this work, we have studied the spin polarization of carriers in n-type resonant tunneling diodes (RTDs) of GaAs/AlGaAs which incorporates a single layer of InAs selfassembled quantum dots in the center of the GaAs quantum ...
Experimentos em ondas e acústica para auxiliar o processo ensino e aprendizagem da física no ensino médio
(Universidade Federal de São Carlos, 2012-04-13)
This paper describes the development of experimental activities with the aid of the microcomputer as a measuring tool in the laboratory teaching of physics, as well as an account of his experience in the classroom. Using ...
Ondas gravitacionais e o espectro de anisotropia tensorial na presença de neutrinos cosmológicos
(Universidade Federal de São Carlos, 2012-07-10)
In this work we have studied the evolution of primordial gravitational waves coupled to anisotropic stress tensor of cosmological neutrinos. As in a radiation dominated universe, in a universe dominated by radiation and ...
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 ...
Superposição de estados comprimidos de dois modos e aplicações em informação quântica
(Universidade Federal de São Carlos, 2019-03-07)
In this work, we present a new class of quantum states for applications in quantum
metrology and quantum information, the states here named as “Even EPR” and “Odd
EPR”. We present a review of the basic concepts of ...
Do positivo ao negativo : utilizando ferramentas computacionais e experimentação para a simulação de (meta)materiais refrativos
(Universidade Federal de São Carlos, 2016-08-22)
This work aims at the development of physical phenomena simulations associated to
mathematical modeling and experimentation. The choice of geometrical optics is due,
among other reasons, to the need for raising the ...