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Universality of local weak interactions and its application for interferometric alignment

The modification of the effect of interactions of a particle as a function of its preselected and postselected states is analyzed theoretically and experimentally. The universality property of this modification in the case of local interactions of a spatially preselected and postselected particle ha...

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Detalles Bibliográficos
Autores principales: Dziewior, Jan, Knips, Lukas, Farfurnik, Demitry, Senkalla, Katharina, Benshalom, Nimrod, Efroni, Jonathan, Meinecke, Jasmin, Bar-Ad, Shimshon, Weinfurter, Harald, Vaidman, Lev
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Academy of Sciences 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6386691/
https://www.ncbi.nlm.nih.gov/pubmed/30723153
http://dx.doi.org/10.1073/pnas.1812970116
Descripción
Sumario:The modification of the effect of interactions of a particle as a function of its preselected and postselected states is analyzed theoretically and experimentally. The universality property of this modification in the case of local interactions of a spatially preselected and postselected particle has been found. It allowed us to define an operational approach for the characterization of the presence of a quantum particle in a particular place: the way it modifies the effect of local interactions. The experiment demonstrating this universality property provides an efficient interferometric alignment method, in which the position of the beam on a single detector throughout one phase scan yields all misalignment parameters.