Skip to main content

Research Repository

Advanced Search

Outputs (3)

Analysis beyond the Thomas-Fermi approximation of the density profiles of a miscible two-component Bose-Einstein condensate (2015)
Journal Article
Polo, J., Ahufinger, V., Mason, P., Sridhar, S., Billam, T., & Gardiner, S. (2015). Analysis beyond the Thomas-Fermi approximation of the density profiles of a miscible two-component Bose-Einstein condensate. Physical Review A, 91(5), Article 053626. https://doi.org/10.1103/physreva.91.053626

We investigate a harmonically trapped two-component Bose-Einstein condensate within the miscible regime, close to its boundaries, for different ratios of effective intra- and interspecies interactions. We derive analytically a universal equation for... Read More about Analysis beyond the Thomas-Fermi approximation of the density profiles of a miscible two-component Bose-Einstein condensate.

Identifying a Superfluid Reynolds Number via Dynamical Similarity (2015)
Journal Article
Reeves, M., Billam, T., Anderson, B., & Bradley, A. (2015). Identifying a Superfluid Reynolds Number via Dynamical Similarity. Physical Review Letters, 114(15), Article 155302. https://doi.org/10.1103/physrevlett.114.155302

The Reynolds number provides a characterization of the transition to turbulent flow, with wide application in classical fluid dynamics. Identifying such a parameter in superfluid systems is challenging due to their fundamentally inviscid nature. Perf... Read More about Identifying a Superfluid Reynolds Number via Dynamical Similarity.

Spectral energy transport in two-dimensional quantum vortex dynamics (2015)
Journal Article
Billam, T., Reeves, M., & Bradley, A. (2015). Spectral energy transport in two-dimensional quantum vortex dynamics. Physical Review A, 91(2), Article 023615. https://doi.org/10.1103/physreva.91.023615

We explore the possible regimes of decaying two-dimensional quantum turbulence, and elucidate the nature of spectral energy transport by introducing a dissipative point-vortex model with phenomenological vortex-sound interactions. The model is valid... Read More about Spectral energy transport in two-dimensional quantum vortex dynamics.