56 citations · 173 across the 9 of their papers we have counts for
9 papers
Cloud parameter estimation for interacting BEC after time-of-flight
Rasmus Malthe Fiil Andersen, Stine Frederiksen, Laurits Stokholm +4
Experiments on Bose-Einstein condensates at finite temperature typically extract the system parameters, such as temperature, atom number, and condensed fraction from time-of-flight…
Atom Number Fluctuations in Bose Gases -- Statistical analysis of parameter estimation
Toke Vibel, Mikkel Berg Christensen, Rasmus Malthe Fiil Andersen +5
The investigation of the fluctuations in interacting quantum systems at finite temperatures showcases the ongoing challenges in understanding complex quantum systems. Recently, ato…
Spatial calibration of high-density absorption imaging
Toke Vibel, Mikkel Berg Christensen, Mick Althoff Kristensen +4
The accurate determination of atom numbers is an ubiquitous problem in the field of ultracold atoms. For modest atom numbers, absolute calibration techniques are available, however…
Microcanonical and Canonical Fluctuations in Bose-Einstein Condensates -- Fock state sampling approach
Maciej Bartłomiej Kruk, Dawid Hryniuk, Mick Kristensen +4
The fluctuations of the atom number between a Bose-Einstein condensate and the surrounding thermal gas have been the subject of a long standing theoretical debate. This discussion…
Observation of Microcanonical Atom Number Fluctuations in a Bose-Einstein Condensate
M. B. Christensen, T. Vibel, A. J. Hilliard +6
Quantum systems are typically characterized by the inherent fluctuation of their physical observables. Despite this fundamental importance, the investigation of the fluctuations in…
Preparation of mesoscopic atomic ensembles with single-particle resolution
A. Hüper, C. Pür, M. Hetzel +7
The analysis of entangled atomic ensembles and their application for interferometry beyond the standard quantum limit requires an accurate determination of the number of atoms. We…
Observation of Atom Number Fluctuations in a Bose-Einstein Condensate
M. A. Kristensen, M. B. Christensen, M. Gajdacz +7
Fluctuations are a key property of both classical and quantum systems. While the fluctuations are well understood for many quantum systems at zero temperature, the case of an inter…
Sub-atom shot noise Faraday imaging of ultracold atom clouds
Mick A. Kristensen, Miroslav Gajdacz, Poul L. Pedersen +4
We demonstrate that a dispersive imaging technique based on the Faraday effect can measure the atom number in a large, ultracold atom cloud with a precision below the atom shot noi…
Preparation of ultracold atom clouds at the shot noise level
Miroslav Gajdacz, Andrew J. Hilliard, Mick A. Kristensen +4
We prepare number stabilized ultracold clouds through the real-time analysis of non-destructive images and the application of feedback. In our experiments, the atom number ${N\sim1…