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1–5 Sept 2024
Novotel Surfers Paradise, Gold Coast, Queensland, Australia
Australia/Brisbane timezone

Universal dynamics in strongly interacting Bose gases far from equilibrium

2 Sept 2024, 12:00
20m
Novotel Surfers Paradise, Gold Coast, Queensland, Australia

Novotel Surfers Paradise, Gold Coast, Queensland, Australia

Cnr Of Surfers Paradise Blvd, Hanlan St, Surfers Paradise QLD 4217
Contributed talk FINESS

Speaker

RuGway WU (Atominstitut, Technische Universität Wien)

Description

We prepare gases of Feshbach molecules of lithium 6 far from equilibrium by introducing broad excitations using an optical speckle potential, and study the relaxation of the strongly interacting isolated many-body system going through the formation of a molecular Bose-Einstein condensates (mBEC). We report for the first time, universal spatio-temporal scaling behaviour in a strongly interacting Bose gas.
By varying the interaction strength of the system and observing the duration of scaling evolution, we show how the dimensionality of the system affects the stability of soliton-like excitations, and the non-equilibrium evolution rate. Comparison of the observed dependence on interaction with the earlier rubidium experiment suggests a possible general scaling law governing the self-similar evolution.

Short bio (50 words) or link to website

PhD at the Australian National University, group of Andrew Truscott, metastable helium experiment
Postdoc researcher at Atominstitut, Technische Universität Wien, Vienna, Austria, Schmiedmayer group, building and managing Lithium 6 quantum gas experiment.

Career stage Postdoc

Primary authors

Mr Qi Liang (Atominstitut, Technische Universität Wien) RuGway WU (Atominstitut, Technische Universität Wien) Dr Sebastian Erne (Atominstitut, Technische Universität Wien) Prof. Jörg Schmiedmayer (Atominstitut, Technische Universität Wien)

Presentation materials

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