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Entanglement-Enhanced Atomic Gravimeter

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autorschaft

  • Christophe Cassens
  • Bernd Meyer-Hoppe
  • Ernst Rasel
  • Carsten Klempt

Organisationseinheiten

Externe Organisationen

  • DLR-Institut für Satellitengeodäsie und Inertialsensorik
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Details

OriginalspracheEnglisch
Seitenumfang9
FachzeitschriftPhysical Review X
Jahrgang15
Ausgabenummer1
Frühes Online-Datum11 Feb. 2025
PublikationsstatusVeröffentlicht - März 2025

Abstract

Interferometers based on ultra-cold atoms enable an absolute measurement of inertial forces with unprecedented precision. However, their resolution is fundamentally restricted by quantum fluctuations. Improved resolutions with entangled or squeezed atoms were demonstrated in internal-state measurements for thermal and quantum-degenerate atoms and, recently, for momentum-state interferometers with laser-cooled atoms. Here, we present a gravimeter based on Bose-Einstein condensates with a sensitivity of $-1.7^{+0.4}_{-0.5}\,$dB beyond the standard quantum limit. Interferometry with Bose-Einstein condensates combined with delta-kick collimation minimizes atom loss in and improves scalability of the interferometer to very-long baseline atom interferometers.

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Entanglement-Enhanced Atomic Gravimeter. / Cassens, Christophe; Meyer-Hoppe, Bernd; Rasel, Ernst et al.
in: Physical Review X, Jahrgang 15, Nr. 1, 03.2025.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Cassens C, Meyer-Hoppe B, Rasel E, Klempt C. Entanglement-Enhanced Atomic Gravimeter. Physical Review X. 2025 Mär;15(1). Epub 2025 Feb 11. doi: 10.1103/PhysRevX.15.011029, 10.48550/arXiv.2404.18668
Cassens, Christophe ; Meyer-Hoppe, Bernd ; Rasel, Ernst et al. / Entanglement-Enhanced Atomic Gravimeter. in: Physical Review X. 2025 ; Jahrgang 15, Nr. 1.
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