Year: 2025
Type: article
Abstract: The authors investigate the superfluid fraction of bosonic gases in two-dimensional potentials using the Gross-Pitaevskii theory and Diffusion Monte Carlo method. It is shown that the upper and lower bounds introduced by Leggett (which are easily computable starting from in-situ images of the ultracold cloud) provide an accurate prediction for the exact superfluid fraction under many experimentally relevant conditions.
Source: Physical Review A
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1175115578, G121809054, G1301776901, G148081399, G1855990336, G1990017007, G2064873908, G2262748287, G2309174360, G252646220, G2660406951, G279363373, G2879864793, G294895050, G3005324705, G300979063, G3375465512, G34346518, G3470217882, G3480869486, G363947740, G4179535065, G417969858, G425668148, G430777504, G5043799576, G5058101487, G5080475149, G5421974903, G5805502524, G6344031981, G6344349169, G6363417690, G6389258043, G6453481984, G6505494016, G69051668, G702465783, G7084143925, G7240651115, G7342182005, G787121397, G897484643, G99296377
OpenAlex ID: W4406327192