Matter-wave lensing of ultracold atomic gases by interaction quenching via two-photon scatteringMeung Ho Seo, Jongchul Mun, Sang-Bum Lee and Jae Hoon LeeEPJ Quantum Technol., 12 1 (2025) 13DOI: https://doi.org/10.1140/epjqt/s40507-025-00315-8