Improving cold-atom sensors with quantum entanglement: Prospects and challenges

SS Szigeti, O Hosten, SA Haine - Applied Physics Letters, 2021 - pubs.aip.org
Quantum entanglement has been generated and verified in cold-atom experiments and
used to make atom-interferometric measurements below the shot-noise limit. However …

Collective-mode enhanced matter-wave optics

C Deppner, W Herr, M Cornelius, P Stromberger… - Physical Review Letters, 2021 - APS
In contrast to light, matter-wave optics of quantum gases deals with interactions even in free
space and for ensembles comprising millions of atoms. We exploit these interactions in a …

[HTML][HTML] Testing gravity with cold atom interferometry: results and prospects

GM Tino - Quantum Science and Technology, 2021 - iopscience.iop.org
Atom interferometers have been developed in the last three decades as new powerful tools
to investigate gravity. They were used for measuring the gravity acceleration, the gravity …

Ultraprecision quantum sensing and measurement based on nonlinear hybrid optomechanical systems containing ultracold atoms or atomic Bose–Einstein …

A Motazedifard, A Dalafi, MH Naderi - AVS Quantum Science, 2021 - pubs.aip.org
In this review, the authors study how a hybrid optomechanical system (OMS), in which a
quantum micro-or nano-mechanical oscillator is coupled to the electromagnetic radiation …

[HTML][HTML] A space-based quantum gas laboratory at picokelvin energy scales

N Gaaloul, M Meister, R Corgier, A Pichery… - Nature …, 2022 - nature.com
Ultracold quantum gases are ideal sources for high-precision space-borne sensing as
proposed for Earth observation, relativistic geodesy and tests of fundamental physical laws …

Momentum entanglement for atom interferometry

F Anders, A Idel, P Feldmann, D Bondarenko… - Physical Review Letters, 2021 - APS
Compared to light interferometers, the flux in cold-atom interferometers is low and the
associated shot noise is large. Sensitivities beyond these limitations require the preparation …

Long-lived squeezed ground states in a quantum spin ensemble

L Xin, M Barrios, JT Cohen, MS Chapman - Physical Review Letters, 2023 - APS
We generate spin squeezed ground states in an atomic spin-1 Bose-Einstein condensate
tuned near the quantum-critical point separating the different spin phases of the interacting …

Floquet engineering to overcome no-go theorem of noisy quantum metrology

SY Bai, JH An - Physical Review Letters, 2023 - APS
Permitting a more precise measurement to physical quantities than the classical limit by
using quantum resources, quantum metrology holds a promise in developing many …

Large-Momentum-Transfer Atom Interferometers with -Accuracy Using Bragg Diffraction

JN Kirsten-Siemß, F Fitzek, C Schubert, EM Rasel… - Physical Review Letters, 2023 - APS
Large-momentum-transfer (LMT) atom interferometers using elastic Bragg scattering on light
waves are among the most precise quantum sensors to date. To advance their accuracy …

Platform and environment requirements of a satellite quantum test of the weak equivalence principle at the level

C Struckmann, R Corgier, S Loriani, G Kleinsteinberg… - Physical Review D, 2024 - APS
The space-time explorer and quantum equivalence principle space test (STE-QUEST)
recently proposed, aims at performing a precision test of the weak equivalence principle …