Analysis and calibration of absorptive images of Bose–Einstein condensate at nonzero temperatures

Szczepkowski, J.; Gartman, R.; Witkowski, M.; Tracewski, L.; Zawada, M.; Gawlik, W.
May 2009
Review of Scientific Instruments;May2009, Vol. 80 Issue 5, p053103
Academic Journal
We describe the method allowing quantitative interpretation of absorptive images of mixtures of Bose–Einstein condensate and thermal atoms which reduces possible systematic errors associated with evaluation of the contribution of each fraction and eliminates arbitrariness of most of the previous approaches. By using known temperature dependence of the BEC fraction, the analysis allows precise calibration of the fitting results. The developed method is verified in two different measurements and compares well with theoretical calculations and with measurements performed by another group.


Related Articles

  • A Nonextensive Approach to Bose-Einstein Condensation of Trapped Interacting Boson Gas. A. Lawani; J. Le Meur; Dmitrii Tayurskii; A. El Kaabouchi; L. Nivanen; B. Minisini; F. Tsobnang; M. Pezeril; A. Le Méhauté; Q. Wang // Journal of Low Temperature Physics;Feb2008, Vol. 150 Issue 3/4, p605 

    Abstract   In the Bose-Einstein condensation of interacting atoms or molecules such as 87Rb, 23Na and 7Li, the theoretical understanding of the transition temperature is not always obvious due to the interactions or zero point energy which cannot be exactly taken into account....

  • Bose-Einstein condensation in recent experiments. Fukuda, M.; Mutuga, S.; Toyoda, T. // AIP Conference Proceedings;2000, Vol. 519 Issue 1, p741 

    © 2000 American Institute of Physics.

  • Formation of a molecular Bose-Einstein condensate and an entangled atomic gas by time-dependent Feshbach resonance. Yurovsky, V. A.; Ben-Reuven, A. // AIP Conference Proceedings;2002, Vol. 645 Issue 1, p479 

    Association in an atomic Bose-Einstein condensate, and the subsequent dissociation of the resulting molecular condensate, due to Feshbach resonance in a time-dependent magnetic field, are analyzed, incorporating non-mean-field quantum corrections and inelastic collisions. Calculations for the Na...

  • Supersolid Phases of Cold Atom Assemblies. Boninsegni, M. // Journal of Low Temperature Physics;Aug2012, Vol. 168 Issue 3/4, p137 

    We review recent theoretical results for soft-core Bose systems, and describe the low-temperature supersolid 'droplet crystal' phase, predicted for a broad class of soft-core interactions. We identify the conditions on the inter-particle interaction that render such intriguing phase possible,...

  • Exploring the BEC-BCS Crossover with an Ultracold Gas of 6Li Atoms. Bartenstein, M.; Altmeyer, A.; Riedl, S.; Jochim, S.; Geursen, R.; Chin, C.; Hecker Denschlag, J.; Grimm, R. // AIP Conference Proceedings;2005, Vol. 770 Issue 1, p278 

    We present an overview of our recent measurements on the crossover from a Bose-Einstein condensate of molecules to a Bardeen-Cooper-Schrieffer superfluid. The experiments are performed on a two-component spin-mixture of 6Li atoms, where a Feshbach resonance serves as the experimental key to tune...

  • Physicists Create New Source of Light: Bose-Einstein Condensate 'Super-Photons'.  // Journal of Applied Sciences;2011, Vol. 11 Issue 6, p1073 

    No abstract available.

  • Light speed reduction to 17 metres per second in an ultracold atomic gas. Hau, Lene Vestergaard; Harris, S.E.; Dutton, Zachary; Behroozi, Cyrus H. // Nature;2/18/1999, Vol. 397 Issue 6720, p594 

    Describes the use of sodium atoms at nanokelvin temperatures to observe light pulses travelling at velocities of only 17 meters per second. Process of loading and cooling atoms; Question of whether the atom cloud remains in the Bose-Einstein condensed state during the interaction with the...

  • A compact, transportable, microchip-based system for high repetition rate production of Bose–Einstein condensates. Farkas, Daniel M.; Hudek, Kai M.; Salim, Evan A.; Segal, Stephen R.; Squires, Matthew B.; Anderson, Dana Z. // Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p093102 

    We present a compact, transportable system that produces Bose–Einstein condensates near the surface of an integrated atom microchip. The system occupies a volume of 0.4 m3, operates at a repetition rate as high as 0.3 Hz, and consumes an average power of 525 W. Evaporative cooling in a...

  • Physics Update. Schewe, Phillip F. // Physics Today;Jan99, Vol. 52 Issue 1, p9 

    Focuses on a research conducted Wolfgang Ketterle and his colleagues at Massachusetts Institute of Technology, which created a Bose-Einstein condensate in which the spin orientations of the condensed atoms are free to evolve. Findings of the research.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics