Quantum sensing with light and atoms
ICFO-The Institute of Photonic Sciences. The Barcelona Institute of Science and Technology, Spain
Detecting gravitational waves and recording magnetic fields from the brain are two examples of extreme sensing, problems in which the ability to observe tiny, non-recurring changes in the environment is of utmost importance. Quantum physics provides us with excellent tools for extreme sensing – optical and atomic interferometers. Quantum sensing, the science of these extreme instruments, combines elements of classical statistics, quantum optics, quantum information, and quantum many-body physics. This lecture will cover the essentials of quantum sensing, with illustrations from experiments using hot, cold, and ultra-cold atoms.