AUTHOR=Cao Jie , Xu Jinchao TITLE=Efficient (k, n) threshold semi-quantum secret sharing protocol JOURNAL=Frontiers in Physics VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1542675 DOI=10.3389/fphy.2025.1542675 ISSN=2296-424X