Search
Now showing items 21-30 of 57
Propriedades ópticas e magneto-ópticas de monocamadas de dicalcogenetos de metais de transição
(Universidade Federal de São Carlos, 2022-06-07)
Bidimensional (2D) materials are systems of great interest both from the fundamental physical point of view and for possible applications in electronics, optoelectronics and spintronics. In this thesis, the optical properties ...
Optimization and application of the quantum adiabatic theorem, and the quantum origin of classical interference
(Universidade Federal de São Carlos, 2022-03-29)
In this master’s thesis, we developed three different topics. In the first topic, we studied the quantum adiabatic brachistochrone method (QAB) for optimizing adiabatic dynamics. In the first part of this study, we reported ...
Blockade and antiblockade effects with near-ground state neutral atoms
(Universidade Federal de São Carlos, 2022-09-06)
In this work we study the photon blockade and antiblockade effects in a system of neutral
atoms with a two-level structure, in the limit where induced dipole-dipole interactions
mediated by light are relevant. Such system ...
Efeitos de dimensionalidade em perovskitas de haletos para aplicações em células solares: um estudo ab initio
(Universidade Federal de São Carlos, 2022-10-07)
The structural stability and toxic lead are known obstacles to the current photovoltaic application of perovskite solar cells (PSCs) with high power conversion efficiencies (PCEs). Herein, we perform a systematic study ...
Método de dinâmicas efetivas aplicado na análise da interação qubit-qubit em dispositivos supercondutores: a interação qubit-qubit no contexto da computação quântica
(Universidade Federal de São Carlos, 2022-02-23)
In this dissertation, we approach some aspects of quantum computing. At first, we detail the Deutsch-Jozsa algorithm and show how to implement it in real IBM quantum computers, available free of charge via remote access ...
Propriedades óticas e magneto-óticas de monocamadas de MoWSe2
(Universidade Federal de São Carlos, 2023-01-23)
Two-dimensional (2D) semiconductors, such as transition-metal dichalcogenide (TMD) monolayers, have attracted intense interest in the last years because of their direct band gaps, valley properties and excitonic effects. ...
Quantum transistor using superconducting qubits
(Universidade Federal de São Carlos, 2022-09-23)
In recent times, quantum computation has become a flourishing field of research with increasing investment due to its promise to revolutionize computing, increasing the speed of information processing to levels far beyond ...
Dopagem substitucional de peroviskitas com metais de transição 3d: um estudo ab initio
(Universidade Federal de São Carlos, 2022-10-04)
The global demand for energy has brought into focus the halide perovskites as materials
with high potential for applications in photovoltaic devices. Great progress has been made
in the last 10 years, demonstrating the ...
Otimizando a eficiência de células solares baseadas em nanoestruturas semicondutoras quaternárias
(Universidade Federal de São Carlos, 2020-02-28)
Solar cells composed of semiconductor materials with gap energies and different structures, commonly known as Multijunction, have been the record holders for efficiency in converting solar to electric energy in recent ...
Processamento convencional e assistido por campo elétrico (Flash Sintering) de cerâmicas livres de chumbo baseadas em K0,5Na0,5NbO3: propriedades físicas finais
(Universidade Federal de São Carlos, 2020-08-07)
K0,5Na0,5NbO3 (KNN)-based ceramics are considered promising candidates to replace lead-based piezoelectric ceramics, such as Pb(ZrxTi1−x)O3, which are widely used in electro electronic devices. However, obtaining KNN-based ...