TY - RPRT TI - Classical eikonal from Magnus expansion AU - Kim, Joon-Hwi [California Institute of Technology, Pasadena, CA (United States)] (ORCID:000000025474123X) AU - Kim, Jung-Wook [Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Potsdam (Germany)] (ORCID:0000000230577906) AU - Kim, Sungsoo [Seoul National University (Korea)] (ORCID:0009000917548674) AU - Lee, Sangmin [Seoul National University (Korea)] (ORCID:0000000262958287) PY - 2025 DO - 10.1007/jhep01(2025)111 UR - https://www.osti.gov/biblio/3005955 ID - 3005955 ER -