Hyperfine spectroscopy of optical-cycling transitions in singly ionized thulium

Fuente: arXiv
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Autori principali: Müller, Patrick, Tretiakov, Andrei, Younes, Amanda, Halawani, Nicole, Campbell, Wesley C., Hamilton, Paul
Natura: Preprint
Pubblicazione: 2025
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author Müller, Patrick
Tretiakov, Andrei
Younes, Amanda
Halawani, Nicole
Campbell, Wesley C.
Hamilton, Paul
author_facet Müller, Patrick
Tretiakov, Andrei
Younes, Amanda
Halawani, Nicole
Campbell, Wesley C.
Hamilton, Paul
contents We present a spectroscopic investigation of $^{169}\mathrm{Tm}^+$ that provides two key foundations for its use as a platform for advanced quantum applications. First, we establish the complete spectroscopic road map for optical cycling (including laser cooling) by performing high-resolution spectroscopy on $^{169}\mathrm{Tm}^+$ ions in an ion trap. We characterize the primary $313\,\mathrm{nm}$ and complementary $448/453\,\mathrm{nm}$ cycling transitions, identify the essential near-infrared repumping frequencies, and determine the magnetic-dipole hyperfine $A$ constants for all relevant levels. Second, we report a detailed characterization of a metastable state as a candidate for hosting a robust qubit, performing lifetime measurements and Zeeman-resolved microwave hyperfine spectroscopy with $\mathrm{kHz}$ precision.
format Preprint
id arxiv_https___arxiv_org_abs_2512_14885
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Hyperfine spectroscopy of optical-cycling transitions in singly ionized thulium
Müller, Patrick
Tretiakov, Andrei
Younes, Amanda
Halawani, Nicole
Campbell, Wesley C.
Hamilton, Paul
Atomic Physics
Quantum Physics
We present a spectroscopic investigation of $^{169}\mathrm{Tm}^+$ that provides two key foundations for its use as a platform for advanced quantum applications. First, we establish the complete spectroscopic road map for optical cycling (including laser cooling) by performing high-resolution spectroscopy on $^{169}\mathrm{Tm}^+$ ions in an ion trap. We characterize the primary $313\,\mathrm{nm}$ and complementary $448/453\,\mathrm{nm}$ cycling transitions, identify the essential near-infrared repumping frequencies, and determine the magnetic-dipole hyperfine $A$ constants for all relevant levels. Second, we report a detailed characterization of a metastable state as a candidate for hosting a robust qubit, performing lifetime measurements and Zeeman-resolved microwave hyperfine spectroscopy with $\mathrm{kHz}$ precision.
title Hyperfine spectroscopy of optical-cycling transitions in singly ionized thulium
topic Atomic Physics
Quantum Physics
url https://arxiv.org/abs/2512.14885