Optical Visibility and Core Structure of Vortex Filaments in a Bosonic Superfluid

Year: 2018

Authors: Dalfovo F., Bisset R.N., Mordini C., Lamporesi G., Ferrari G.

Autors Affiliation: – INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, Trento, 38123 Italy
– Trento Institute for Fundamental Physics and Applications, INFN, Trento, 38123 Italy

Abstract: We use optical images of a superfluid consisting of a weakly interacting Bose–Einstein condensate
of sodium atoms to investigate the structure of quantized three-dimensional vortex filaments. We find that
the measured optical contrast and the width of the vortex core quantitatively agree with the predictions of the
Gross–Pitaevskii equation.

Journal/Review: JETP LETTERS

Volume: 127 (5)      Pages from: 804  to: 811

More Information: We dedicate this paper to L.P. Pitaevskii in celebration of his 85th birthday. No words can express our gratitude for the times spent working alongside him and, of course, for his pioneering contributions to physics itself. This work is supported by Provincia Autonoma di Trento and by QuantERA ERA-NET cofund project NAQUAS.
KeyWords: vortex filaments
DOI: 10.1134/S1063776118110018

Citations: 3
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