AUTHOR=Ohshima Takeshi TITLE=Toward real application of quantum sensing and metrology JOURNAL=Frontiers in Quantum Science and Technology VOLUME=1 YEAR=2022 URL=https://www.frontiersin.org/journals/quantum-science-and-technology/articles/10.3389/frqst.2022.998459 DOI=10.3389/frqst.2022.998459 ISSN=2813-2181