Light with orbital angular momentum interacting with trapped ions

We study the interaction of light beams carrying angular momentum with a single, trapped and well localized ion. We provide a detailed calculation of selection rules and excitation probabilities for quadrupole transitions. The results show the dependencies on the angular momentum and polarization of...

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Autor principal: Schmiegelow, Christian Tomás
Publicado: 2012
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346060_v66_n6_p_Schmiegelow
http://hdl.handle.net/20.500.12110/paper_14346060_v66_n6_p_Schmiegelow
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_14346060_v66_n6_p_Schmiegelow2023-06-08T16:15:34Z Light with orbital angular momentum interacting with trapped ions Schmiegelow, Christian Tomás We study the interaction of light beams carrying angular momentum with a single, trapped and well localized ion. We provide a detailed calculation of selection rules and excitation probabilities for quadrupole transitions. The results show the dependencies on the angular momentum and polarization of the laser beam as well as the direction of the quantization magnetic field. In order to optimally observe the specific effects, focusing the angular momentum beam close to the diffraction limit is required. We discuss a protocol for examining experimentally the effects on the S 1/2 to D 5/2 transition using a 40Ca + ion. Various applications and advantages are expected when using light carrying angular momentum: in quantum information processing, where qubit states of ion crystals are controlled, parasitic light shifts could be avoided as the ion is excited in the dark zone of the beam at zero electric field amplitude. Such interactions also open the door to high dimensional entanglement between light and matter. In spectroscopy one might access transitions which have escaped excitation so far due to vanishing transition dipole moments. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2012. Fil:Schmiegelow, C.T. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346060_v66_n6_p_Schmiegelow http://hdl.handle.net/20.500.12110/paper_14346060_v66_n6_p_Schmiegelow
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We study the interaction of light beams carrying angular momentum with a single, trapped and well localized ion. We provide a detailed calculation of selection rules and excitation probabilities for quadrupole transitions. The results show the dependencies on the angular momentum and polarization of the laser beam as well as the direction of the quantization magnetic field. In order to optimally observe the specific effects, focusing the angular momentum beam close to the diffraction limit is required. We discuss a protocol for examining experimentally the effects on the S 1/2 to D 5/2 transition using a 40Ca + ion. Various applications and advantages are expected when using light carrying angular momentum: in quantum information processing, where qubit states of ion crystals are controlled, parasitic light shifts could be avoided as the ion is excited in the dark zone of the beam at zero electric field amplitude. Such interactions also open the door to high dimensional entanglement between light and matter. In spectroscopy one might access transitions which have escaped excitation so far due to vanishing transition dipole moments. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2012.
author Schmiegelow, Christian Tomás
spellingShingle Schmiegelow, Christian Tomás
Light with orbital angular momentum interacting with trapped ions
author_facet Schmiegelow, Christian Tomás
author_sort Schmiegelow, Christian Tomás
title Light with orbital angular momentum interacting with trapped ions
title_short Light with orbital angular momentum interacting with trapped ions
title_full Light with orbital angular momentum interacting with trapped ions
title_fullStr Light with orbital angular momentum interacting with trapped ions
title_full_unstemmed Light with orbital angular momentum interacting with trapped ions
title_sort light with orbital angular momentum interacting with trapped ions
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346060_v66_n6_p_Schmiegelow
http://hdl.handle.net/20.500.12110/paper_14346060_v66_n6_p_Schmiegelow
work_keys_str_mv AT schmiegelowchristiantomas lightwithorbitalangularmomentuminteractingwithtrappedions
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