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Updated: Oct 13, 2025

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Delta-Kick Squeezing

Robin Corgier1, Naceur Gaaloul2, Augusto Smerzi1

  • 1QSTAR, INO-CNR and LENS, Largo Enrico Fermi 2, 50125 Firenze, Italy.

Physical Review Letters
|November 12, 2021
PubMed
Summary

We demonstrate a method to surpass the standard quantum limit (SQL) in atom interferometry using Bose-Einstein condensates (BECs) and delta-kick squeezing (DKS). This technique achieves over 30 dB sensitivity gain beyond SQL, even with imperfect atom counting.

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