All News
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April 18, 2025
Observation of Jones-Roberts solitons in a paraxial quantum fluid of lightOur recent work on Jones-Roberts solitons in paraxial fluids of light has been accepted for publication in Physical Review Letters Observation of Jones-Roberts solitons in a paraxial quantum fluid of light, Myrann Baker-Rasooli, Tangui Aladjidi, Nils A Krause, Ashton S...Read more -
February 07, 2025
Regimes of Steady-State Turbulence in a Quantum FluidEditor’s suggestion: ``The authors theoretically study the development of turbulence in a Bose-Einstein condensate trapped and shaken in a box potential. They identify two distinct turbulence regimes with different scalings for weak and strong forces.” Regimes of Steady-State Turbulence in...Read more -
November 04, 2024
Thermal Decay of Planar Jones-Roberts SolitonsOur work on decay mechanisms of Jones-Roberts solitons has appeared in Physical Review A Thermal decay of planar Jones-Roberts solitons, Nils A. Krause, Ashton S. Bradley, Phys. Rev. A 110, 053302 (2024); arXiv. Congratulations Nils! Abstract: Homogeneous planar superfluids exhibit...Read more -
September 10, 2024
Public Lectures - Quantum What?I gave two public talks on the history and applications of quantum mechanics. First at Tuhura Otago Museum, as a prelude to the play Constellations. Second, I presented a longer version at the Dunedin chapter of University of the Third...Read more -
July 13, 2024
Visits to Paris, ICAP, Durham et alNils and I presented recent work at several meetings and caught up with developments in quantum fluids of atoms and light. Also, a vortex was spotted in King’s Cross Station. Nils’ conference marathon Nils may have covered almost every relevant...Read more -
June 15, 2024
Picking knots -classifying vortex tanglesFormer BSc Honours student Tim Copland has come back from a stint in the commercial sector to work on new fast methods for vortex detection, classification, and visualisation in 3D quantum fluids. Tim has a flair for solving challenging problems...Read more -
February 26, 2024
Invited Talk at ICTSI gave an invited talk at the meeting Turbulence and Vortex Dynamics in 2D Quantum Fluids held on 26 February to 2 March 2024 at the Ramanujan Lecture Hall, at the International Center for Theoretical Sciences, TATA Institute of Fundamental...Read more -
December 01, 2019
Big year for experimental collaborationsIn 2019 several experimental collaborations came to fruition all at once, and we published two articles in Science, and one in Nature Communications in the same year: Giant vortex clusters in a two-dimensional quantum fluid, Guillaume Gauthier, Matthew T. Reeves,...Read more -
July 15, 2019
QSO mini-symposiumI helped coordinate a one day satellite meeting for ICOS2019 visitors on 15 July 2019. The meeting involved around 30 participants and featured a departmental seminar from Aidan Arnold (image, right) and a Public Lecture from Eric Cornell at Tuhura...Read more -
February 02, 2019
Giant vortex clusters in a two-dimensional quantum fluidOur collaboration with the University of Queensland experimental group of Tyler Neely has appeared in print. Giant vortex clusters in a two-dimensional quantum fluid, Guillaume Gauthier, Matthew T. Reeves, Xiaoquan Yu, A. S. Bradley, Mark Baker, Thomas A. Bell, Halina...Read more -
January 25, 2019
ANZSUP 2019I presented 2 lectures and 3 computer workshops on stochastic differential equations, quantum phase space, and julia, at the Australian and New Zealand School in Ultracold Physics 2019. The lectures and workshops are available online Ashton Bradley ANZSUP 2019 Lectures...Read more -
February 13, 2018
FINESS 2018 International ConferenceThe international meeting Finite Temperature Non-equilibrium Superfluid Systems was held in Wanaka 19-23 February 2018 at the Edgewater Hotel on the lakefront. I was the local organiser and chair for the meeting. The meeting involved around 100 participants and an...Read more -
June 12, 2017
Welcome Stuart SzigetiWe welcome Dr Stuart Szigeti for a six month research visit funded by an Endeavour Fellowship from the Australian Research Council. Stuart will be working on control theory of finite temperature Bose-Einstein condensates.Read more -
January 01, 2017
Congratulations MattMatt Reeves has finished his PhD and taken up a postdoc research fellow position with Matthew Davis’ group at the University of Queensland.Read more -
December 30, 2015
ANZSUP 2015I gave two lectures at the 2015 Australian and New Zealand School in Ultracold Physics. Open quantum systems Dissipative dynamics of hot Bose-Einstein condensates ANZSUP 2015Read more -
June 18, 2015
QSO Cold Atoms WorkshopI had the pleasure to orgainse a cold atoms workshop on 17-18 June 2015 at Arana College. Blair had a delicious cake made to mark the auspicious occasion of the 20th birthday of BEC! The meeting involved around 30 participants...Read more -
February 01, 2015
Welcome Xiaoquan YuWe welcome new postdoctoral research fellow Dr Xiaoquan Yu, formerly at SISSA, and at Sergej Flach group at NZIAS, Xiaoquan is joining us to work on critical phenomena in two-dimensional quantum turbulence.Read more -
January 01, 2015
2015 Exceptional Thesis -Sam RooneyThe thesis of Otago PhD candidate Sam Rooney has been ranked as a 2015 Exceptional PhD Theses in the Division of Sciences. Sam’s PhD research pioneered applications of the open quantum systems approach to dilute-gas Bose-Einstein condensates, leading to significant...Read more