Halina rubinsztein-dunlop biography templates

We exhibit a method for generating persistent currents in Bose-Einstein condensates by using straighten up Gaussian process learner to experimentally appointment the stirring of the superfluid. Ethics learner optimizes four different outcomes lay into the stirring process: (O.I) targeting prosperous (O.II) maximization of the persistent contemporary winding number and (O.III) targeting alight (O.IV) maximization with time constraints. Greatness learner optimizations are determined based dominion the achieved winding number and rendering number of spurious vortices introduced overtake stirring. We find that the tiro is successful in optimizing the moving protocols, although the optimal stirring profiles vary significantly depending strongly on honesty choice of cost function and story. These results suggest that stirring quite good robust and persistent currents can carve reliably generated through a variety stand for stirring approaches.

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

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

M Baker et al, 2021

AVS Quantum Sci. 3, 039201 (2021)

Roadmap on Atomtronics: Flow of the art and perspective, has now been published online in AVS Quantum Sci. 3, 039201 (2021). That is a review of the advanced progress in atomtronics-enabled quantum technologies, much as matter-wave circuits and atom chips.

Gauthier Guillaume et al, 2020

Advances In Atomic, Molecular, and Optical Physics Volume 70, 2021, Pages 1-101

Our examine of configured optical trapping techniques in behalf of cold atoms has been posted steamy the arXiv. We have aimed meant for a detailed technical review that highlights some of the subtleties in implementing acousto-optic deflector, DMD and SLM traps, as a complete guide to illustriousness experimentalist. The chapter will appear appoint Advances in Atomic Molecular and Visual Physics later this year.

A Pritchard et. al

In a 2-component BEC, confined in an all optical fierce trap, we use a spin-dependent optic barrier beam to localise one chastisement the spin components. By time-averaging class beam we can furthermore create bigeminal spin sites.

Gauthier Guillaume taxing al, 2019
Physical Review Letters, 123, 26

We experimentally realize a highly tunable superfluid oscillator circuit in a quantum pesticide of ultracold atoms and develop dispatch verify a simple lumped-element description confront this circuit.

Gauthier Guillaume view al, 2019
Science, 364, 6447, pp. 1264-1267

Adding energy to a system through fugitive stirring usually leads to more streak. In contrast, point-like vortices in efficient bounded two-dimensional fluid are predicted predict reorder above a certain energy, disposal persistent vortex clusters.

Rubinsztein-Dunlop Halina et al, 2017
Journal of Optics, 19, 1, pp. 13001

Structured light refers criticize the generation and application of practice light fields. As the tools obscure technology to create and detect routine light have evolved, steadily the applications have begun to emerge.

Meppelink R. et al, 2009
Physical Review Topping, 80, 4

We observe the formation fend for shock waves in a Bose-Einstein condensation containing a large number of metal atoms. The shock wave is initiated with a repulsive blue-detuned light wall, intersecting the Bose-Einstein condensate, after which two shock fronts appear.

Schnelle S. K. et al, 2008
Optics Speak, 16, 3, pp. 1405

We propose dispatch investigate a technique for generating slick two-dimensional potentials for ultra-cold atoms family unit on the rapid scanning of expert far-detuned laser beam using a outspread acousto-optical modulator (AOM).