Observation of the Berezinskii-Kosterlitz-Thouless transition in a two-dimensional Bose gas via matter-wave interferometry

We probe local phase fluctuations of trapped two-dimensional (2D) Bose gases using matter-wave interferometry. This enables us to measure the phase correlation function, which changes from an algebraic to an exponential decay when the system crosses the Berezinskii-Kosterlitz-Thouless (BKT) transiti...

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Bibliographic Details
Main Authors: Sunami, S, Singh, VP, Garrick, D, Beregi, A, Barker, AJ, Luksch, K, Bentine, E, Mathey, L, Foot, CJ
Format: Journal article
Language:English
Published: American Physical Society 2022