Local correlations reveal the superfluid to normal boundary in a trapped two-dimensional quantum gas
Romain Dubessy (LPL), Camilla De Rossi (LPL), Mathieu De Go\"er de, Herve (LPL), Thomas Badr (LPL), Aur\'elien Perrin (LPL), Laurent Longchambon, (LPL), H\'el\`ene Perrin (LPL)
TL;DR
This study introduces a model-free method using local principal component analysis to identify the superfluid to normal phase boundary in a trapped two-dimensional Bose gas.
Contribution
It presents a novel, model-free approach to determine two-fluid dynamics and phase boundaries in 2D quantum gases based on local dynamical analysis.
Findings
Successfully identified the superfluid-normal boundary.
Demonstrated the effectiveness of local PCA in quantum gas dynamics.
Provided insights into phase transition behavior in 2D Bose gases.
Abstract
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.
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