Coherent enhancement of collection of light from linear ion crystals

Abstract The efficient detection of light from trapped ions in free space is paramount for most of their applications. We propose a scheme to enhance the photon collection from linear ion strings. It employs the constructive interference of light scattered from ions along the axial direction in line...

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Main Authors: Thuy Dung Tran, Daniel Babjak, Artem Kovalenko, Kratveer Singh, Tuan Minh Pham, Petr Obšil, Adam Lešundák, Ondřej Číp, Lukáš Slodička
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:npj Quantum Information
Online Access:https://doi.org/10.1038/s41534-025-01058-1
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author Thuy Dung Tran
Daniel Babjak
Artem Kovalenko
Kratveer Singh
Tuan Minh Pham
Petr Obšil
Adam Lešundák
Ondřej Číp
Lukáš Slodička
author_facet Thuy Dung Tran
Daniel Babjak
Artem Kovalenko
Kratveer Singh
Tuan Minh Pham
Petr Obšil
Adam Lešundák
Ondřej Číp
Lukáš Slodička
author_sort Thuy Dung Tran
collection DOAJ
description Abstract The efficient detection of light from trapped ions in free space is paramount for most of their applications. We propose a scheme to enhance the photon collection from linear ion strings. It employs the constructive interference of light scattered from ions along the axial direction in linear Paul traps. The coherent enhancement of photon collection is numerically optimized for a range of feasible spatial angles and realistic ion positions in a single harmonic Coulomb potential. Despite the large mutual distance of scatterers on the order of many wavelengths of scattered light, the experimental tests presented confirm the feasibility of enhancements by a factor of 3.05 ± 0.09 with a crystal of nine 40Ca+ ions. The proposed collection geometry is intrinsic to diverse linear ion trap designs, and the methodology can be directly applied to an observation of scattering from ion crystals prepared in collective electronic excitations.
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series npj Quantum Information
spelling doaj-art-76cb997f60714445ba463aac2d7d0b1c2025-08-20T04:03:07ZengNature Portfolionpj Quantum Information2056-63872025-07-011111810.1038/s41534-025-01058-1Coherent enhancement of collection of light from linear ion crystalsThuy Dung Tran0Daniel Babjak1Artem Kovalenko2Kratveer Singh3Tuan Minh Pham4Petr Obšil5Adam Lešundák6Ondřej Číp7Lukáš Slodička8Department of Optics, Palacký UniversityDepartment of Optics, Palacký UniversityDepartment of Optics, Palacký UniversityDepartment of Optics, Palacký UniversityInstitute of Scientific Instruments of the Czech Academy of SciencesDepartment of Optics, Palacký UniversityDepartment of Optics, Palacký UniversityInstitute of Scientific Instruments of the Czech Academy of SciencesDepartment of Optics, Palacký UniversityAbstract The efficient detection of light from trapped ions in free space is paramount for most of their applications. We propose a scheme to enhance the photon collection from linear ion strings. It employs the constructive interference of light scattered from ions along the axial direction in linear Paul traps. The coherent enhancement of photon collection is numerically optimized for a range of feasible spatial angles and realistic ion positions in a single harmonic Coulomb potential. Despite the large mutual distance of scatterers on the order of many wavelengths of scattered light, the experimental tests presented confirm the feasibility of enhancements by a factor of 3.05 ± 0.09 with a crystal of nine 40Ca+ ions. The proposed collection geometry is intrinsic to diverse linear ion trap designs, and the methodology can be directly applied to an observation of scattering from ion crystals prepared in collective electronic excitations.https://doi.org/10.1038/s41534-025-01058-1
spellingShingle Thuy Dung Tran
Daniel Babjak
Artem Kovalenko
Kratveer Singh
Tuan Minh Pham
Petr Obšil
Adam Lešundák
Ondřej Číp
Lukáš Slodička
Coherent enhancement of collection of light from linear ion crystals
npj Quantum Information
title Coherent enhancement of collection of light from linear ion crystals
title_full Coherent enhancement of collection of light from linear ion crystals
title_fullStr Coherent enhancement of collection of light from linear ion crystals
title_full_unstemmed Coherent enhancement of collection of light from linear ion crystals
title_short Coherent enhancement of collection of light from linear ion crystals
title_sort coherent enhancement of collection of light from linear ion crystals
url https://doi.org/10.1038/s41534-025-01058-1
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