Explore precision atom interferometry with quantum gases in this 43-minute conference talk by Naceur Gaaloul from the University of Hannover. Recorded at the Frontiers of Quantum Metrology conference, delve into the latest advancements in quantum metrology and its applications in fundamental physics. Discover how quantum sensors are being used for dark matter searches and gravitational wave detection. Gain insights into the unexpected connections between quantum metrology methods and various fields of physics, including optics, condensed matter, atomic physics, quantum information, particle physics, and gravitational physics. Learn about the cross-fertilization between theory and experiment, and explore new ideas in quantum metrology for future applications in fundamental physics studies.