Quantum Logic Control of a Transition Metal Ion

verfasst von: Till Rehmert, Maximilian J. Zawierucha, Kai Dietze, Piet O. Schmidt, Fabian Wolf
Abstract: Extending quantum control to increasingly complex systems is crucial for both advancing quantum technologies and fundamental physics. In trapped ion systems, quantum logic techniques that combine a well-controlled logic species with a more complex spectroscopy species have proven to be a powerful tool for extending the range of accessible species. Here, we demonstrate that a quantum system as complex as Ti+48 with its many metastable states can be controlled employing a combination of intrinsic thermalization due to collisions with background gas and quantum-logic techniques using a far-detuned Raman laser. The preparation of pure quantum states allows coherent manipulation and high resolution measurements of the Zeeman structure in Ti+48. The presented techniques are applicable to a wide range of ionic species giving access to a larger variety of systems for fundamental physics and constitute the first step for quantum-controlled spectroscopy of transition metals, relevant, e.g., for the interpretation of astrophysical spectra.
Organisationseinheit(en): Institut für Quantenoptik
Externe Organisation(en): Physikalisch-Technische Bundesanstalt (PTB)
Typ: Artikel
Journal: Physical review letters
Band: 134
ISSN: 0031-9007
Publikationsdatum: 18.03.2025
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Allgemeine Physik und Astronomie
Elektronische Version(en): https://doi.org/10.1103/PhysRevLett.134.113201 (Zugang: Offen)
https://doi.org/10.48550/arXiv.2410.07936 (Zugang: Offen)

BibTeX

@article{b5e192b6beeb4c368fce779bc7296eb9,
title = "Quantum Logic Control of a Transition Metal Ion",
abstract = "Extending quantum control to increasingly complex systems is crucial for both advancing quantum technologies and fundamental physics. In trapped ion systems, quantum logic techniques that combine a well-controlled logic species with a more complex spectroscopy species have proven to be a powerful tool for extending the range of accessible species. Here, we demonstrate that a quantum system as complex as Ti+48 with its many metastable states can be controlled employing a combination of intrinsic thermalization due to collisions with background gas and quantum-logic techniques using a far-detuned Raman laser. The preparation of pure quantum states allows coherent manipulation and high resolution measurements of the Zeeman structure in Ti+48. The presented techniques are applicable to a wide range of ionic species giving access to a larger variety of systems for fundamental physics and constitute the first step for quantum-controlled spectroscopy of transition metals, relevant, e.g., for the interpretation of astrophysical spectra.",
author = "Till Rehmert and Zawierucha, {Maximilian J.} and Kai Dietze and Schmidt, {Piet O.} and Fabian Wolf",
year = "2025",
month = mar,
day = "18",
doi = "10.1103/PhysRevLett.134.113201",
language = "English",
volume = "134",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "11",
}