Correlações induzidas pelas flutuações de ponto zero da eletrodinâmica estocástica

• Ano de defesa: 2009
• Autor(a) principal: Silva, Luciano Fonseca da
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Programa de Pós-graduação em Física; Física
• Palavras-chave em Português: Eletrodinâmica; Flutuações de ponto zero; CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA
• Link de acesso: https://app.uff.br/riuff/handle/1/19155

Quantum optics has become a great laboratory to theoretically predict and experimentally generate quantum states inconceivable in the classical theory, as some of these states have apparently non-local properties. This is the case of entangled states, where the protocols of quantum information and quantum cryptography and quantum lithography schemes are based. In this thesis we propose studying a class of experiments using a theory of local realism, purely ondulatory, without dualities, which seeks to explain these pheno- mena in a manner consistent with the fundamentals of classical theory. This theory, stochastic optics approach, is basically the classical ¯eld theory with a new frame: it is assumed that the ¯eld has zero-point °uctuations with the same spectrum provided by quantum theory, the only di®erence is that this ¯eld is real, although it can not be accessed by detectors. We show that it is possible within this framework to reproduce several results that were obtained before with quantum ¯eld theory and, consequently, understand the origins that lead to the interpretation of non-locality in quantum mechanics and the violations of the Duan and Schwartz inequalities. We show how the entangled state correlations can be understood as correlations mediated by the zero point fluctuations.