Dr. Andrew Groszek

Postdoctoral Research Fellow

Dr. Andrew Groszek completed his PhD in theoretical physics at Monash University in 2018, under the supervision of Assoc. Prof. Tapio Simula. His doctoral research involved the numerical simulation of non-equilibrium superfluids, with a particular interest in vortices and turbulence in these systems.

From 2018-2020, he worked as a postdoctoral research associate in the group of Dr. Thomas Billam at Newcastle University, United Kingdom. Here he continued his research on far-from-equilibrium systems, with a focus on superfluids away from the zero temperature limit.

In 2020, he joined the group of Prof. Matthew Davis at the University of Queensland, and is currently based in the ARC Centres of Excellence for Engineered Quantum Systems (EQUS) and Future Low-Energy Electronics Technology (FLEET). He is currently investigating periodically driven quantum systems, as well as providing numerical modelling for the Bose-Einstein condensate experiments located on campus.

Physics Annexe Room 06-418
a.groszek@uq.edu.au

Publications

The list below includes all publications associated with the UQ BEC lab. For a full list of publications, please click here.
Publications
Viability of rotation sensing using phonon interferometry in Bose-Einstein condensates
Viability of rotation sensing using phonon interferometry in Bose-Einstein condensates

Charles W. Woffinden, Andrew J. Groszek, Guillaume Gauthier, Bradley J. Mommers, Michael. W. J. Bromley, Simon A. Haine, Halina Rubinsztein-Dunlop, Matthew J. Davis, Tyler W. Neely, Mark Baker, SciPost Phys. 15, 128 (2023) - Published 2 October 2023

In this work, we cool down rubidium atoms to close to absolute zero to form a Bose Einstein Condensate. We form this condensate into a ring, then create sound waves travelling around the circumference of the ring. These sound waves (or phonons) create a standing wave in the density of the condensate, with high- and low-density points around the ring which act as markers. Due to the superfluid nature of the condensate, these markers stay in the same location of the ring and don’t rotate, even if the lab frame of reference is rotating (e.g. due to Earth’s rotation). This means that these markers act as an absolute frame of reference - like the north-seeking pole on a compass and so could potentially be used for navigation in situations where satellite navigation is not available e.g. under water.

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