Artist’s view of the atom chip used at the University of Basel and of three entangled Bose–Einstein condensates serving as local sensors.
Artist’s view of the atom chip used at the University of Basel and of three entangled Bose–Einstein condensates serving as local sensors. © Yifan Li et al.
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Alice Sinatra
Communication CNRS Physique
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Quantum metrology: a sensor network to surpass the standard limit

Scientific news

Precision sensors are limited by quantum noise related to the fact that a finite number of particles are being measured. By using entanglement between several atomic Bose-Einstein condensates, researchers have shown that it is possible to enhance measurement precision, even when estimating several quantities at the same time.

The present study was carried out in the following CNRS laboratory:

  • Laboratoire Kastker Brossel (LKB, CNRS/Collège de France/ENS-PSL/Sorbonne Université)

References :

Multiparameter estimation with an array of entangled atomic sensors, Yifan Li, Lex Joosten, Youcef Baamara, Paolo Colciaghi, Alice Sinatra, Philipp Treutlein, Tilman Zibold, Science 391, 374-378 - Published 22 January 2026.
DOI : 10.1126/science.adt2442
Open access : arXiv

Contact

Alice Sinatra
Enseignante-Chercheuse de Sorbonne Université au Laboratoire Kastler Brossel (LKB)
Communication CNRS Physique