Automated quantum operations in photonic qutrits

We report an experimental implementation of automated state transformations on spatial photonic qutrits following the theoretical proposal made by Baldijão et al. [Phys. Rev. A 96, 032329 (2017)]. A qutrit state is simulated by using three Gaussian beams, and after some state operations, the transfo...

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Detalles Bibliográficos
Autores: Borges, Guilherme de Freitas, Baldijão, Roberto Dobal, Condé, João Guilherme Lara, Cabral, Jader de Souza, Marques, B., Terra Cunha, Marcelo, Cabello Quintero, Adán, Pádua, Sebastião
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/154179
Acceso en línea:https://hdl.handle.net/11441/154179
https://doi.org/10.1103/PhysRevA.97.022301
Access Level:acceso abierto
Palabra clave:Quantum operations
Gaussian beams
Photonic qutrits
Descripción
Sumario:We report an experimental implementation of automated state transformations on spatial photonic qutrits following the theoretical proposal made by Baldijão et al. [Phys. Rev. A 96, 032329 (2017)]. A qutrit state is simulated by using three Gaussian beams, and after some state operations, the transformed state is available in the end in terms of the basis state. The state transformation setup uses a spatial light modulator and a calcite-based interferometer. The results reveal the usefulness of the operation method. The experimental data show a good agreement with theoretical predictions, opening possibilities for explorations in higher dimensions and in a wide range of applications. This is a necessary step in qualifying spatial photonic qudits as a competitive setup for experimental research in the implementation of quantum algorithms which demand a large number of steps.