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I have studied quantum metrology, in particular experiments on atomic clocks. Time and frequency can be measured most precisely within all the measurable physical quantities. Recently, atomic clocks, such as ion clocks or optical lattice clocks, have achieved 18-digit precision, and the development of transportable clocks has been accelerated for practical applications, such as geodesy. On the other hand, if the ticking rate of an atomic clock, which is thought to be immutable, changes slightly, it may be due to some unknown physical phenomenon. In recent years, I have been trying to develop such quantum sensors to search for “new physics” beyond the Standard Model.
This research aims to develop a new platform for quantum metrology, where laser-cooled thulium (Tm) atoms are trapped near an optical waveguide. Through this platform, I will tackle the three problems of quantum metrology: scalability, continuous operation, and robustness against the electromagnetic field. Then, I would try to search for new physics beyond the Standard Model.