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Measurement-enhanced determination of BEC phase transitions
journal contribution
posted on 2023-06-09, 14:29 authored by Mark Bason, Robert Heck, Mario Napolitano, Ottó Elíasson, Romain Müller, Aske Thorsen, Wen-Zhuo Zhang, Jan J Arlt, Jacob F ShersonWe 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 timeof- 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.
Funding
The Danish Council for Independent Research
The European Research Council
The Lundbeck Foundation
Marie Curie IEF
The Villum Foundation
History
Publication status
- Published
File Version
- Published version
Journal
Journal of Physics B: Atomic, Molecular and Optical PhysicsISSN
0953-4075Publisher
IOP PublishingExternal DOI
Issue
17Volume
51Page range
175301 1 -9Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Atomic, Molecular and Optical Physics Research Group Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2018-08-13First Open Access (FOA) Date
2018-08-13First Compliant Deposit (FCD) Date
2018-08-09Usage metrics
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