Demonstração óptica do algoritmo de Deutsch-Jozsa com 1 qubit

• Ano de defesa: 2010
• Autor(a) principal: Mariana Rodrigues Barros
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Física; Modulador espacial de luz; Informação quântica; Conversão paramétrica descendente
• Link de acesso: http://hdl.handle.net/1843/BUOS-A46HBQ

In this work we implement the Deutsch-Jozsa algorithm with one qubit by removing a redundancy on it, which reduces the size of the register and simpli es the function evaluation. In order to do this, we used a pair of photons produced by down convertion, where one of them is used as triguer and the other passes trougth a double slit; as result its output is in a superposition of paths, i.e., one qubit. Using a spatial light modulator (SLM) that puts phases on the paths of the photons, and detecting in coincidence, we demonstrate the Deutsch-Jozsa algorithm with photons, and using only one qubit.