My research interests focus on utilizing quantum optics, atom optics, and laser cooling and trapping techniques for quantum sensing, precision measurement, and quantum metrology. For example, I am going to explore the use of an optical matter wave guide based on a hollow-core photonic crystal fiber. This could lead to demonstration of atom interferometry with optically guided matter waves inside the fiber and use it for mobile gravity gradiometry, testing the charge neutrality of atoms, and eventually measuring Newton’s gravitational constant G. This research could bring research in the field of atomic sensor and precision measurement to the next level of compactness and versatility combined with high accuracy.