Quantum measurements with entangled atomic clouds

22 January 2026 / Research

Quantum measurements with entangled atomic clouds

With three atomic clouds whose spins (blue) are entangled with each other at a distance, the researchers can measure the spatial variation of an electromagnetic field. (Illustration: Enrique Sahagún, Scixel / University of Basel, Department of Physics)

A research team led by BQC Prof. Dr. Philipp Treutlein at the University of Basel and Prof. Dr. Alice Sinatra at the Laboratoire Kastler Brossel (LKB) in Paris have demonstrated how quantum mechanical entanglement can be used to measure several physical parameters simultaneously with greater precision.