The University of Queensland

Critical velocity and arrest of a superfluid in a pointlike disordered potential

Doran, R., Groszek, A. J. and Billam, T. P. (2024). Critical velocity and arrest of a superfluid in a pointlike disordered potential. Physical Review A, 109 (1) 013306. doi: 10.1103/physreva.109.013306

Viability of rotation sensing using phonon interferometry in Bose-Einstein condensates

Woffinden, Charles, Groszek, Andrew J., Gauthier, Guillaume, Mommers, Bradley J., Bromley, Michael W. J., Haine, Simon A., Rubinsztein-Dunlop, Halina, Davis, Matthew J., Neely, Tyler W. and Baker, Mark (2023). Viability of rotation sensing using phonon interferometry in Bose-Einstein condensates. SciPost Physics, 15 (4) 128, 1-22. doi: 10.21468/scipostphys.15.4.128

Berezinskii-Kosterlitz-Thouless transitions in an easy-plane ferromagnetic superfluid

Underwood, Andrew P. C., Groszek, Andrew J., Yu, Xiaoquan, Blakie, P. B. and Williamson, L. A. (2023). Berezinskii-Kosterlitz-Thouless transitions in an easy-plane ferromagnetic superfluid. Physical Review Research, 5 (1) L012045. doi: 10.1103/physrevresearch.5.l012045

Simulating cosmological supercooling with a cold atom system. II. Thermal damping and parametric instability

Billam, Thomas P., Brown, Kate, Groszek, Andrew J. and Moss, Ian G. (2021). Simulating cosmological supercooling with a cold atom system. II. Thermal damping and parametric instability. Physical Review A, 104 (5) 053309. doi: 10.1103/physreva.104.053309

Geometric phases of a vortex in a superfluid

Polkinghorne, Rodney E. S., Groszek, Andrew J. and Simula, Tapio P. (2021). Geometric phases of a vortex in a superfluid. Physical Review A, 104 (4) L041305. doi: 10.1103/physreva.104.l041305

Crossover in the dynamical critical exponent of a quenched two-dimensional Bose gas

Groszek, A. J., Comaron, P., Proukakis, N. P. and Billam, T. P. (2021). Crossover in the dynamical critical exponent of a quenched two-dimensional Bose gas. Physical Review Research, 3 (1) 013212. doi: 10.1103/physrevresearch.3.013212

Decaying quantum turbulence in a two-dimensional Bose-Einstein condensate at finite temperature

Groszek, Andrew J., Davis, Matthew J. and Simula, Tapio P. (2020). Decaying quantum turbulence in a two-dimensional Bose-Einstein condensate at finite temperature. Scipost Physics, 8 (3) 039. doi: 10.21468/SciPostPhys.8.3.039

Evolution of large-scale flow from turbulence in a two-dimensional superfluid

Johnstone, Shaun P., Groszek, Andrew J., Starkey, Philip T., Billington, Christopher J., Simula, Tapio P. and Helmerson, Kristian (2019). Evolution of large-scale flow from turbulence in a two-dimensional superfluid. Science, 364 (6447), 1267-1271. doi: 10.1126/science.aat5793

Einstein-Bose condensation of Onsager vortices

Valani, Rahil N., Groszek, Andrew J. and Simula, Tapio P. (2018). Einstein-Bose condensation of Onsager vortices. New Journal of Physics, 20 (5) 053038. doi: 10.1088/1367-2630/aac0bb

Motion of vortices in inhomogeneous Bose-Einstein condensates

Groszek, Andrew J., Paganin, David M., Helmerson, Kristian and Simula, Tapio P. (2018). Motion of vortices in inhomogeneous Bose-Einstein condensates. Physical Review A, 97 (2) 023617. doi: 10.1103/PhysRevA.97.023617

Vortex thermometry for turbulent two-dimensional fluids

Groszek, Andrew J., Davis, Matthew J., Paganin, David M., Helmerson, Kristian and Simula, Tapio P. (2018). Vortex thermometry for turbulent two-dimensional fluids. Physical Review Letters, 120 (3) 034504, 034504. doi: 10.1103/PhysRevLett.120.034504

Onsager vortex formation in Bose-Einstein condensates in two-dimensional power-law traps

Groszek, Andrew J., Simula, Tapio P., Paganin, David M. and Helmerson, Kristian (2016). Onsager vortex formation in Bose-Einstein condensates in two-dimensional power-law traps. Physical Review A, 93 (4) 043614. doi: 10.1103/PhysRevA.93.043614

Hamiltonian dynamics of two same-sign point vortices

Murray, Anderson V., Groszek, Andrew J., Kuopanportti, Pekko and Simula, Tapio (2016). Hamiltonian dynamics of two same-sign point vortices. Physical Review A, 93 (3) 033649. doi: 10.1103/PhysRevA.93.033649