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Measurement-enhanced determination of BEC phase transitions
- Source :
- J. Phys. B 51, 175301 (2018)
- Publication Year :
- 2016
-
Abstract
- We demonstrate how dispersive atom number measurements during evaporative cooling can be used for enhanced determination of the parameter dependence of the transition to a Bose-Einstein condensate (BEC). In this way shot-to-shot fluctuations in initial conditions are detected and the information extracted per experimental realization is increased. We furthermore calibrate in-situ images from dispersive probing of a BEC with corresponding absorption images in time-of-flight. This allows for the determination of the transition point in a single experimental realization by applying multiple dispersive measurements. Finally, we explore the continuous probing of several consecutive phase transition crossings using the periodic addition of a focused "dimple" potential.<br />Comment: 9 pages, 7 figures; M. G. Bason and R. Heck contributed equally to this work
- Subjects :
- Quantum Physics
Condensed Matter - Quantum Gases
Subjects
Details
- Database :
- arXiv
- Journal :
- J. Phys. B 51, 175301 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1607.02934
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1361-6455/aad447