Cold-atom interferometry: A tool for metrology and fundamental physics

摘要

In this paper, after a short theoretical introduction, we are going to discuss the application of matter-wave interferometry to the precise measurement of two important physical constants: the Newtonian gravitational constant G and the fine-structure constant a. This capability of determining the strength of so different fundamental interactions (gravity and electromagnetism) makes such technique one of the most versatile investigation methods available.