AUTHOR=Emerick Jacob , Patnaik Anil K. , Rostovtsev Yuri TITLE=The refractive index of a single three-level atom experienced by a single photon JOURNAL=Frontiers in Quantum Science and Technology VOLUME=Volume 4 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/quantum-science-and-technology/articles/10.3389/frqst.2025.1546480 DOI=10.3389/frqst.2025.1546480 ISSN=2813-2181