Local correlations reveal the superfluid to normal boundary in a trapped two-dimensional quantum gas

Romain Dubessy (1) , Camilla de Rossi (2, 1) , Mathieu de Goër de Herve (2, 1) , Thomas Badr (2, 1) , Aurélien Perrin (1) , Laurent Longchambon (2, 1) , Hélène Perrin (1)

1 LPL - Laboratoire de Physique des Lasers
2 Condensat de Bose-Einstein

This paper reports the model free determination of the two-fluid dynamics in a trapped two-dimensional Bose gas, relying on a local principal component analysis of the dynamics after a sudden excitation.

Domaines: Gaz Quantiques [cond-mat.quant-gas]

Romain Dubessy, Camilla de Rossi, Mathieu de Goër de Herve, Thomas Badr, Aurélien Perrin, et al.. Local correlations reveal the superfluid to normal boundary in a trapped two-dimensional quantum gas. AIP Conference Proceedings, 2018, 1936, pp.020027. ⟨10.1063/1.5025465⟩. ⟨hal-01631211⟩