Publications

Peer-review publications are available online from several sources.

arXiv preprints | Google Scholar | Publons | Scopus | ORCID iD iconorcid.org/0000-0002-3027-3195

Unpublished arXiv preprints and a full list of published articles can be found below.


ArXiv preprints

Scaling dynamics of the ultra-cold Bose gas
Ashton S. Bradley, Jordan Clarke, Tyler W. Neely, Brian P Anderson, arXiv

Spectral analysis for compressible quantum fluids
Ashton S. Bradley, R. Kishor Kumar, Sukla Pal, Xiaoquan Yu, arXiv

Spin-orbit- and coherently-coupled spin-1 Bose-Einstein condensates under rotation,
Paramjeet Banger, R. Kishor Kumar, Ashton S. Bradley, Sandeep Gautam, arXiv

Emergence of off-axis equilibria in a quantum vortex gas,
Matthew T. Reeves, Kwan Goddard-Lee, Guillaume Gauthier, Oliver R. Stockdale, Hayder Salman, Timothy Edmonds, Xiaoquan Yu, Ashton S. Bradley, Mark Baker, Halina Rubinsztein-Dunlop, Matthew J. Davis, Tyler W. Neely, arXiv


Published

Book Chapters

M. J. Davis, T. M. Wright, P. B. Blakie, A. S. Bradley, R. J. Ballagh & C. W. Gardiner, in Quantum Gases, edited by N. P. Proukakis, S. A. Gardiner, M. J. Davis & M. H. Szymanska (Imperial College Press, London, 2013) pp. 163–175

Papers

[70] Superflow decay in a toroidal Bose gas: The effect of quantum and thermal fluctuations,
Zain Mehdi, Ashton S. Bradley, Joseph J. Hope, Stuart S. Szigeti
SciPost Physics, 11, 080 (2021), arXiv

[69] Neutral vortex necklace in a trapped planar superfluid,
M. M. Cawte, M. T. Reeves, and A. S. Bradley
Journal of Low Temperature Physics 202, 310–328 (2021), arXiv

[68] Steady states, squeezing, and entanglement in intracavity triplet down conversion
Mathew D. E. Denys, Murray K. Olsen, Luke S. Trainor, Harald G. L. Schwefel, and Ashton S. Bradley
Optics Communications 484, 126699 (2021), arXiv

[67] Dynamics of Hot Bose-Einstein Condensates: stochastic Ehrenfest relations for number and energy damping
Rob G. McDonald, Peter S. Barnett, Fradom Atayee, Ashton S. Bradley
SciPost Phys. 8, 029 (2020), arXiv

[66] Coherent vortex dynamics in a strongly-interacting superfluid on a silicon chip
Yauhen P. Sachkou, Christopher G. Baker, Glen I. Harris, Oliver R. Stockdale, Stefan Forstner, Matthew T. Reeves, Xin He, David L. McAuslan, Ashton S. Bradley, Matthew J. Davis, Warwick P. Bowen
Science 366,1480 (2019), arXiv

[65] Giant vortex clusters in a two-dimensional quantum fluid
Guillaume Gauthier, Matthew T. Reeves, Xiaoquan Yu, Ashton S. Bradley, Mark Baker, Thomas A. Bell, Halina Rubinsztein-Dunlop, Matthew J. Davis, Tyler W. Neely
Science 364, 12664 (2019), arXiv

[64] Thermally-robust spin correlations between two atoms
Pimonpan Sompet, Stuart S. Szigeti, Eyal Schwartz, Ashton S. Bradley, Mikkel F. Andersen
Nature Communications 10, 1889 (2019), arXiv

[63] Snell’s Law for a vortex dipole in a Bose-Einstein condensate
Michael M. Cawte, Xiaoquan Yu, Brian P. Anderson, Ashton S. Bradley
SciPost Phys. 6, 032 (2019) (Editor’s Selection), arXiv

[62] Mesoscopic dynamical differences from quantum state preparation in a Bose-Hubbard trimer
M.K. Olsen, T.W. Neely, A.S. Bradley
Physical Review Letters 120, 230406 (2018), arXiv

[61] Enstrophy Cascade in Decaying Two-Dimensional Quantum Turbulence
M. T. Reeves, T. P. Billam, X. Yu, A. S. Bradley
Physical Review Letters 119, 184502 (2017), arXiv

[60] Emergent Non-Eulerian Hydrodynamics of Quantum Vortices in Two Dimensions
X. Yu, A. S. Bradley
Physical Review Letters 119, 185301 (2017), arXiv

[59] A quantum correlated twin atom laser from a Bose-Hubbard system,
M. K. Olsen, A. S. Bradley
Physical Review A 95, 063607 (2017), arXiv

[58] Theory of the vortex-clustering transition in a confined two-dimensional quantum fluid
Xiaoquan Yu, Thomas P. Billam, Jun Nian, Matthew T. Reeves, Ashton S. Bradley
Physical Review A 94, 023602 (2016), arXiv

[57] Brownian motion of a matter-wave bright soliton moving through a thermal cloud of distinct atoms
R. G. McDonald and A. S. Bradley
Physical Review A 93 , 063604 (2016), arXiv

[56] Reservoir interactions of a vortex in a trapped 3D Bose-Einstein condensate
S. J. Rooney, A. J. Allen, U. Zülicke, N. P. Proukakis, A. S. Bradley
Physical Review A 93, 063603 (2016), arXiv

[55] Low-Dimensional Stochastic Projected Gross-Pitaevskii Equation
A. S. Bradley, S. J. Rooney, R. G. McDonald
Physical Review A 92, 033631 (2015), arXiv

[54] Reservoir interactions during Bose-Einstein condensation: Modified critical scaling in the Kibble-Zurek mechanism of defect formation
R. G. McDonald and A. S. Bradley
Physical Review A 92, 063616 (2016), arXiv

[53] Coherence and linewidth of a continuously pumped atom laser at finite temperature
Geoffrey M. Lee, Simon A. Haine, Ashton S. Bradley, Matthew J. Davis
Physical Review A 92, 013605 (2015), arXiv

[52] Quantum ultra-cold atomtronics
M. K. Olsen and A. S. Bradley
Physical Review A 91, 043635 (2015), arXiv

[51] Identifying a superfluid Reynolds number via dynamical similarity
M. T. Reeves, T. P. Billam, B. P. Anderson, A. S. Bradley
Physical Review Letters 114, 155302 (2015), arXiv (Editor’s Suggestion)

[50] Oscillons in coupled Bose-Einstein condensates
Shih-Wei Su, Shih-Chuan Gou, I-Kang Liu, Ashton S. Bradley, Oleksandr Fialko, Joachim Brand
Physical Review A 91, 023631 (2015)

[49] Spectral energy transport in two-dimensional quantum vortex dynamics
T. P. Billam, M. T. Reeves, A. S. Bradley
Physical Review A 91, 023615 (2015) (Editor’s Suggestion)

[48] Stochastic Projected Gross-Pitaevskii equation for spinor and multi-component condensates
Ashton S. Bradley and P. Blair Blakie
Physical Review A 90, 023631 (2014)

[47] Signatures of Coherent Vortex Structures in a Disordered 2D Quantum Fluid
Matthew T. Reeves, Thomas P. Billam, Brian P. Anderson, and Ashton S. Bradley
Physical Review A 89, 053631 (2014)

[46] Dynamic and Energetic Stabilization of Persistent Currents in Bose-Einstein Condensates
K.J.H. Law, T.W. Neely, P.G. Kevrekidis, B.P. Anderson, and A.S. Bradley, R. Carretero-Gonzalez
Physical Review A 89, 053606 (2014)

[45] Onsager-Kraichnan Condensation in Decaying Two-Dimensional Quantum Turbulence
Thomas P. Billam, Matthew T. Reeves, Brian P. Anderson, and Ashton S. Bradley
Physical Review Letters 112, 145301 (2014)

[44] Numerical method for the stochastic projected Gross-Pitaevskii equation
S. J. Rooney, P. B. Blakie, A. S. Bradley
Physical Review E 89, 013302 (2014)

[43] Persistent current formation in a high-temperature Bose-Einstein condensate: an experimental test for classical field theory
S. J. Rooney, T. W. Neely, B. P. Anderson, A. S. Bradley
Physical Review A 88, 063620 (2013)

[42] Characteristics of Two-Dimensional Quantum Turbulence in a Compressible Superfluid
T. W. Neely, A. S. Bradley, E. C. Samson, S. J. Rooney, E. M. Wright, K. J. H. Law, R. Carretero-González, P. G. Kevrekidis, M. J. Davis, B. P. Anderson
Physical Review Letters 111, 235301 (2013)

[41] Kibble-Zurek scaling and its breakdown for spontaneous generation of Josephson vortices in Bose-Einstein condensates
Shih-Wei Su, Shih-Chuan Gou, Ashton Bradley, Oleksandr Fialko, Joachim Brand
Physical Review Letters 110, 215302 (2013)

[40] Inverse Energy Cascade in Forced 2D Quantum Turbulence,
Matthew T. Reeves, Thomas P. Billam, Brian P. Anderson, Ashton S. Bradley
Physical Review Letters 110, 104501 (2013)

[39] Stochastic projected Gross-Pitaevskii equation
S. J. Rooney, P. B. Blakie, A. S. Bradley
Physical Review A 86, 053634 (2012)

[38] Classical and quantum regimes of two-dimensional turbulence in trapped Bose-Einstein condensates
M. T. Reeves, B. P. Anderson, A. S. Bradley
Physical Review A 86, 053621 (2012)

[37] Energy spectra of vortex distributions in two-dimensional quantum turbulence
A. S. Bradley and B. P. Anderson
Physical Review X 2, 041001 (2012)

[36] Quantum tunneling of a vortex between two pinning potentials
O. Fialko, A. S. Bradley, and J. Brand
Physical Review Letters 108, 015301 (2012)

[35] Suppression of Kelvon-induced decay of quantized vortices in oblate Bose-Einstein Condensates
S. J. Rooney, P. B. Blakie, B. P. Anderson, and A. S. Bradley
Physical Review A 84, 023637 (2011)

[34] Analysis of a continuous-variable quadripartite cluster state from a single optical parametric oscillator
S. L. W. Midgley, M. K. Olsen, A. S. Bradley, and O. Pfister
Physical Review A 82, 053826 (2010)

[33] Geometric scale invariance as a route to macroscopic degeneracy: Loading a toroidal trap with a Bose or Fermi gas
D. Baillie, P. B. Blakie, and A. S. Bradley
Physical Review A 82, 013626 (2010)

[32] Quadripartite continuous-variable entanglement via quadruply concurrent downconversion
S. L. W. Midgley, A. S. Bradley, O. Pfister and M. K. Olsen
Physical Review A 81, 063834 (2010)

[31] Observation of vortex dipoles in an oblate Bose-Einstein condensate
T. W. Neely, E. C. Samson, A. S. Bradley, M. J. Davis, and B. P. Anderson
Physical Review Letters 104, 160401 (2010)

[30] Decay of a quantum vortex: Test of nonequilibrium theories for warm Bose-Einstein condensates
S. J. Rooney, A. S. Bradley, and P. B. Blakie
Physical Review A 81, 023630 (2010)

[29] Nonequilibrium dynamics of vortex arrest in a finite-temperature Bose-Einstein condensate
T. M. Wright, A. S. Bradley, and R. J. Ballagh
Physical Review A 81, 013610 (2010)

[28] Finite-temperature dynamics of a single vortex in a Bose-Einstein condensate: Equilibrium precession and rotational symmetry breaking
T. M. Wright, A. S. Bradley, and R. J. Ballagh
Physical Review A 80, 053624 (2009)

[27] Numerical representation of quantum states in the positive-P and Wigner representations
M. K. Olsen, A. S. Bradley
Optics Communications 282, 3924 (2009)

[26] Numerical method for evolving the dipolar projected Gross-Pitaevskii equation
P. B. Blakie, C. Ticknor, A. S. Bradley, A. M. Martin, M. J. Davis, and Y. Kawaguchi
Physical Review E 80, 016703 (2009)

[25] Scale-invariant thermodynamics of a toroidally trapped Bose gas
A. S. Bradley
Physical Review A 79, 033624 (2009)

[24] Dynamical thermalization and vortex formation in stirred two-dimensional Bose-Einstein condensates
T. M. Wright, R. J. Ballagh, A. S. Bradley, P. B. Blakie, C. W. Gardiner
Physical Review A 79, 033624 (2008)

[23] Dynamics and statistical mechanics of ultra-cold Bose gases using c-field techniques
A. S. Bradley, P. B. Blakie, M. J. Davis, R. J. Ballagh, and C. W. Gardiner
Advances in Phyiscs 57, 363 (2008)

[22] Spontaneous vortices in the formation of Bose-Einstein condensates
C. N. Weiler, T. W. Neely, D. R. Scherer, A. S. Bradley, M. J. Davis, and B. P. Anderson
Nature 455, 948 (2008)

[21] From squeezed atom lasers to teleportation of massive particles
M. K. Olsen, S. A. Haine, A. S. Bradley, and J. J. Hope
European Physics Journal Special Topics 160, 331 (2008)

[20] Bose-Einstein condensation from a rotating thermal cloud: Vortex nucleation and lattice formation
A. S. Bradley, C. W. Gardiner, and M. J. Davis
Physical Review A 77, 033616 (2008)

[19] Bright bichromatic entanglement and quantum dynamics of sum frequency generation
M. K. Olsen, A. S. Bradley
Physical Review A 77, 023813 (2008)

[18] Quantum statistical measurements of an atom laser beam
M. K. Olsen, A. S. Bradley, S. A. Haine, J. J. Hope
Nuclear Physics A 790 733 (2007)

[17] Continuous variable tripartite entanglement and Einstein-Podolsky-Rosen correlations from triple nonlinearities
M. K. Olsen, A. S. Bradley, M. D. Reid
Optics and Spectroscopy 103, 195 (2007)

[16] Tripartite entanglement and threshold properties of coupled intracavity down-conversion and sum-frequency generation
C. Pennarun, A. S. Bradley, and M. K. Olsen
Physical Review A 76, 063812 (2007)

[15] Raman scheme to measure the quantum statistics of an atom laser beam
A. S. Bradley, M. K. Olsen, S. A. Haine, and J. J. Hope
Physical Review A 76, 033603 (2007)

[14] Quantum de Laval nozzle: Stability and quantum dynamics of sonic horizons in a toroidally trapped Bose gas containing a superflow
P. Jain, A. S. Bradley, and C. W. Gardiner
Physical Review A 76, 023617 (2007)

[13] Quantum depletion of collapsing Bose-Einstein condensates
S. Wuester, B. J. Dabrowska-Wuester, A. S. Bradley, M. J. Davis, P. B. Blakie, J. J. Hope, and C. M. Savage
Physical Review A 75, 043611 (2007)

[12] Asymmetric polychromatic tripartite entanglement from interlinked $\chi^{(2)}$ parametric interactions
M. K. Olsen, A. S. Bradley
Physical Review A 74, 063809 (2006)

[11] Three-body recombination of ultracold Bose gases using the truncated Wigner method
A. A. Norrie, R. J. Ballagh, C. W. Gardiner, A. S. Bradley
Physical Review A 73, 043618 (2006)

[10] Continuous variable tripartite entanglement and Einstein-Podolsky-Rosen correlations from triple nonlinearities
M. K. Olsen, A. S. Bradley, and M. D. Reid
Journal of Physics B 39, 2515 (2006)

[9] Continuous variable tripartite entanglement from twin nonlinearities
M. K. Olsen, A. S. Bradley
Journal of Physics B 39, 127 (2006)

[8] Bright tripartite entanglement in triply concurrent parametric oscillation
A. S. Bradley, M. K. Olsen, O. Pfister, R. C. Pooser
Physical Review A 72, 053805 (2005)

[7] Phase-space analysis of bosonic spontaneous emission
M. K. Olsen, L. I. Plimak, S. Rebic, A. S. Bradley
Optics Communications 254, 271 (2005)

[6] Properties of the stochastic Gross-Pitaevskii equation: Projected Ehrenfest relations and the optimal plane wave basis
A. S. Bradley, P. B. Blakie, and C. W. Gardiner
Journal of Physics B 38, 4259 (2005)

[5] Fock-state dynamics in Raman photoassociation of Bose-Einstein condensates
M. K. Olsen, A. S. Bradley, and S. B. Cavalcanti
Physical Review A 70, 033611 (2004)

[4] Steady state quantum statistics of a non-markovian atom laser. II
A. S. Bradley, J. J. Hope, M. J. Collett
Physical Review A 68, 063611 (2003)

[3] Theory of Ramsey spectroscopy and anomalous segregation in ultracold rubidium
A. S. Bradley & C.W. Gardiner
Journal of Physics B 35, 4299 (2002)

[2] Analysis of g2 for the cold collision frequency shift in the hydrogen condensate experiments
C. W. Gardiner and A. S. Bradley
Journal of Physics B 34, 4663 (2001)

[1] Theory of the cold collision frequency shift in 1S-2S spectroscopy of Bose-Einstein-condensed and non-condensed hydrogen
C. W. Gardiner and A. S. Bradley
Journal of Physics B 34, 4637 (2001)