AUTHOR=Iizawa Masatomi , Narita Yasuhito TITLE=The cooling prospect of hydrogenated nitrogen ions for quantum defect integration JOURNAL=Frontiers in Physics VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1527062 DOI=10.3389/fphy.2025.1527062 ISSN=2296-424X