Sound modes in collisional superfluid Bose gases

Sound modes in collisional superfluid Bose gases

We theoretically investigate sound modes in a weakly-interacting collisional Bose gas in D dimensions. Using the Landau’s two-fluid hydrodynamics and working within the Bogoliubov theory, we observe the hybridization of the first and second sound modes for D ⩾ 2. To model the recent measurements of...

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Bibliographic Details
Main Authors:	K Furutani, A Tononi, L Salasnich
Format:	Article
Language:	English
Published:	IOP Publishing 2021-01-01
Series:	New Journal of Physics
Subjects:	sound mode Bose superfluid Berezinskii–Kosterlitz–Thouless transition
Online Access:	https://doi.org/10.1088/1367-2630/abed0c

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