Quantum Computers
Mostrando 1-12 de 14 artigos, teses e dissertações.
-
1. Estudo das propriedades do Diodo Emissor de Luz (LED) para a determinação da constante de Planck numa maquete automatizada com o auxílio da plataforma Arduíno
Resumo No presente artigo, apresenta-se o método experimental de determinação da constante de Planck, uma das constantes físicas fundamentais, através do estudo das propriedades quânticas e ondulatórias do diodo emissor de luz (LED) numa maquete experimental automatizada, que contém um circuito eletrônico ligado a um computador utilizando o protocol
Rev. Bras. Ensino Fís.. Publicado em: 09/09/2019
-
2. Biomolecular computers with multiple restriction enzymes
Abstract The development of conventional, silicon-based computers has several limitations, including some related to the Heisenberg uncertainty principle and the von Neumann “bottleneck”. Biomolecular computers based on DNA and proteins are largely free of these disadvantages and, along with quantum computers, are reasonable alternatives to their convent
Genet. Mol. Biol.. Publicado em: 23/10/2017
-
3. COMPUTATIONAL STUDY OF THE INTERACTION BETWEEN INDENE PYRAZOLE AND CYCLIN DEPENDENT KINASE 2
Proteins have been traditionally out of reach of electronic structure methods. But with technological advances in the development of powerful computers and the need to extend the methods of computational chemistry to problems of biological interest, such as the rational design of drugs, new technologies in silico have been developed that allow to study conde
Quím. Nova. Publicado em: 2017-05
-
4. Theoretical investigation of electronic excitation transfer between chlorophylls in light-harvesting antenna of photosystem ii using quantum computers
The excitation energy transfer between chlorophylls in major and minor antenna complexes of photosystem II (PSII) was investigated using quantum Fourier transforms. These transforms have an important role in the efficiency of quantum algorithms of quantum computers. The equation 2n=N was used to make the connection between excitation energy transfers using q
Quím. Nova. Publicado em: 2012
-
5. Aplicação de uma nova proposta de discretização das equações Griffin-Wheeler-Hartree-Fock na geração de bases Gaussianas para cálculos de átomos e moléculas / Aplication of a new proposal for the discretization of the Griffin-Wheeler-Hartree-Fock equations in the generation of Gaussian leases for atomic and molecular calculations
The ongoing evolution of computers has led to several changes in the way of doing science, to create a multitude of new options for solving scientific problems. The implementation of computational methods allowed the theoretical treatment of large systems, complex and different areas of science. One area of particular focus and chemistry of molecules, now ca
Publicado em: 2009
-
6. Construction methods of CSS quantum codes and relationships between quantum codes and matroids / Metodos de construção de codigos quanticos CSS e conexões entre codigos quanticos e matroides
Como principais contribuições desta tese, apresentamos novos métodos de construção que geram novas famílias de códigos quânticos CSS. As construções são baseadas em códigos cíclicos (clássicos) BCH, Reed-Solomon, Reed-Muller, Resíduos quadráticos e também nos códigos derivados do produto tensorial de dois códigos Reed-Solomon. Os principai
Publicado em: 2008
-
7. Hidden subgroup problem in nilpotent groups / Problema do subgrupo oculto em grupos nilpotentes
Computadores quânticos prometem resolver certos problemas assintoticamente mais rápido do que os computadores clássicos. Algoritmos quânticos, como o algoritmo de Shor, podem ser considerados casos particulares do chamado Problema do Subgrupo Oculto(PSO). O PSO consiste em encontrar um subgrupo H de um grupo G por meio de avaliações de uma função f q
Publicado em: 2008
-
8. Uncertainty-based key agreement protocol.
This work introduces a new encryption algorithm. The main motivation to the suggested algorithm is to attempt to open new ways and alternative visions that may be eventually integrated into well established cryptography algorithms being used today. When RSA, DES, and several other algorithms are compared, at least a common and central point can be identified
Publicado em: 2007
-
9. O ensino de química quântica e o computador na perspectiva de projetos
This paper aims to discuss and reflect about the use of computers in the teaching of Quantum Chemistry. A course on Computational Quantum Chemistry concentrating on Medicinal Chemistry projects was developed for undergraduate and graduate students. The results showed that students got more motivated and involved when there is an articulation between theory a
Química Nova. Publicado em: 2005-03
-
10. Técnicas para análise de desempenho de computadores
A series of open source benchmarks for computer performance analysis of personal computers with a focus on computational chemistry calculations is presented. The results returned by these tests are discussed and used to correlate with the actual performance of a set of computers available for research on two computing intensive fields of chemistry, quantum c
Química Nova. Publicado em: 2002-02
-
11. Computação em química teórica: informações técnicas
The purpose of this work is to demonstrate the usefulness of low cost high performance computers. It is presented technics and software packages used by computational chemists. Access to high-performance computing power remains crucial for many computational quantum chemistry. So, this work introduces the concept of PC cluster, an economical computing plataf
Química Nova. Publicado em: 2001-10
-
12. Algorithmic cooling and scalable NMR quantum computers
We present here algorithmic cooling (via polarization heat bath)—a powerful method for obtaining a large number of highly polarized spins in liquid nuclear-spin systems at finite temperature. Given that spin-half states represent (quantum) bits, algorithmic cooling cleans dirty bits beyond the Shannon's bound on data compression, by using a set of rapidly
The National Academy of Sciences.