Ramsey-Bordé atom interferometry with a thermal strontium beam for a compact optical clock Oliver Fartmann, Martin Jutisz, Amir Mahdian, Vladimir Schkolnik, Ingmari C. Tietje, Conrad Zimmermann and Markus Krutzik EPJ Quantum Technol., 12 1 (2025) 31 Published online: 03 March 2025 DOI: 10.1140/epjqt/s40507-025-00332-7