Quantum metrology with nonclassical states of atomic ensembles

L Pezze, A Smerzi, MK Oberthaler, R Schmied… - Reviews of Modern …, 2018 - APS
Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

Accurate atom counting in mesoscopic ensembles

DB Hume, I Stroescu, M Joos, W Muessel, H Strobel… - Physical review …, 2013 - APS
Many cold atom experiments rely on precise atom number detection, especially in the
context of quantum-enhanced metrology where effects at the single particle level are …

Coherent manipulation of Bose–Einstein condensates with state-dependent microwave potentials on an atom chip

P Böhi, MF Riedel, J Hoffrogge, J Reichel, TW Hänsch… - Nature Physics, 2009 - nature.com
Entanglement-based technologies, such as quantum information processing, quantum
simulations and quantum-enhanced metrology, have the potential to revolutionize our way …

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 …

[HTML][HTML] Entanglement-enhanced optical atomic clocks

S Colombo, E Pedrozo-Peñafiel, V Vuletić - Applied Physics Letters, 2022 - pubs.aip.org
Recent developments in atomic physics have enabled the experimental generation of many-
body entangled states to boost the performance of quantum sensors beyond the Standard …

Atom-chip-based generation of entanglement for quantum metrology

MF Riedel, P Böhi, Y Li, TW Hänsch, A Sinatra… - Nature, 2010 - nature.com
Atom chips provide a versatile quantum laboratory for experiments with ultracold atomic
gases. They have been used in diverse experiments involving low-dimensional quantum …

Quantum theory of phase estimation

L Pezze, A Smerzi - Atom interferometry, 2014 - ebooks.iospress.nl
Advancements in physics are often motivated/accompanied by advancements in our
precision measurements abilities. The current generation of atomic and optical …

Fisher information and entanglement of non-Gaussian spin states

H Strobel, W Muessel, D Linnemann, T Zibold… - Science, 2014 - science.org
Entanglement is the key quantum resource for improving measurement sensitivity beyond
classical limits. However, the production of entanglement in mesoscopic atomic systems has …

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 …

Measurement noise 100 times lower than the quantum-projection limit using entangled atoms

O Hosten, NJ Engelsen, R Krishnakumar, MA Kasevich - Nature, 2016 - nature.com
Quantum metrology uses quantum entanglement—correlations in the properties of
microscopic systems—to improve the statistical precision of physical measurements. When …