Bason, Mark, Heck, Robert, Napolitano, Mario, Elíasson, Ottó, Müller, Romain, Thorsen, Aske, Zhang, Wen-Zhuo, Arlt, Jan J and Sherson, Jacob F (2018) Measurement-enhanced determination of BEC phase transitions. Journal of Physics B: Atomic, Molecular and Optical Physics. ISSN 0953-4075
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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 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.
Item Type: | Article |
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Keywords: | Bose–Einstein condensates, Faraday effect, phase transitions, quantum simulation, ultracold quantum gases, phase diagrams, dispersive probing |
Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Research Centres and Groups: | Atomic, Molecular and Optical Physics Research Group |
Subjects: | Q Science > QC Physics |
Depositing User: | Jodie Bacon |
Date Deposited: | 13 Aug 2018 08:35 |
Last Modified: | 13 Aug 2018 08:37 |
URI: | http://srodev.sussex.ac.uk/id/eprint/77745 |
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