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Condensation dynamics in a quantum-quenched Bose gas
Robert P. Smith, Scott Beattie, Stuart Moulder +2
By quenching the strength of interactions in a partially condensed Bose gas we create a "super-saturated" vapor which has more thermal atoms than it can contain in equilibrium. Sub…
Quantised supercurrent decay in an annular Bose-Einstein condensate
Stuart Moulder, Scott Beattie, Robert P. Smith +2
We study the metastability and decay of multiply-charged superflow in a ring-shaped atomic Bose-Einstein condensate. Supercurrent corresponding to a giant vortex with topological c…
Robust Digital Holography For Ultracold Atom Trapping
Alexander L Gaunt, Zoran Hadzibabic
We have formulated and experimentally demonstrated an improved algorithm for design of arbitrary two-dimensional holographic traps for ultracold atoms. Our method builds on the bes…
Condensed Fraction of an Atomic Bose Gas Induced by Critical Correlations
Robert P. Smith, Naaman Tammuz, Robert L. D. Campbell +2
We study the condensed fraction of a harmonically-trapped atomic Bose gas at the critical point predicted by mean-field (MF) theory. The non-zero condensed fraction is induce…
Effects of Interactions on the Critical Temperature of a Trapped Bose Gas
Robert P. Smith, Robert L. D. Campbell, Naaman Tammuz +1
We perform high-precision measurements of the condensation temperature of a harmonically-trapped atomic Bose gas with widely-tuneable interactions. For weak interactions we observe…
Can a Bose gas be saturated?
Naaman Tammuz, Robert P. Smith, Robert L. D. Campbell +4
Bose-Einstein condensation is unique among phase transitions between different states of matter in the sense that it occurs even in the absence of interactions between particles. I…