Quantum control of an ultracold quantum gas

This thesis is devoted to the study of quantum control of an ultracold atomic ensemble of $^{87}$Rb. Stroboscopic probing is used to achieve real-time tracking of the collective spin magnitude and orientation via non-destructive Faraday probing. By means of an RF feedback scheme we achieve a reducti...

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Detalles Bibliográficos
Autor: Agustí Bruzon, Joan
Tipo de recurso: tesis de maestría
Fecha de publicación:2019
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/168973
Acceso en línea:https://hdl.handle.net/2117/168973
Access Level:acceso abierto
Palabra clave:Quantum optics
Faraday probing
ultracold quantum gas
Òptica quàntica
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
Descripción
Sumario:This thesis is devoted to the study of quantum control of an ultracold atomic ensemble of $^{87}$Rb. Stroboscopic probing is used to achieve real-time tracking of the collective spin magnitude and orientation via non-destructive Faraday probing. By means of an RF feedback scheme we achieve a reduction in angular dispersion of the precessing spin down to a circular standard deviation \textit{circ std}$(\phi)$=\SI{0.11(3)}{\radian}.