# Hydrodynamic attractors in ultracold atoms

- Institution: CERN
- Speaker: Tilman Enss
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3025655)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Hydrodynamic attractors are a universal phenomenon of strongly interacting systems that describe an hydrodynamic-like evolution far from local equilibrium. We describe how such behavior might be observed in real time in ultracold atomic gases. Although ultracold atomic gases are dilute, they have remarkable transport properties exhibiting hydrodynamics and nearly perfect fluidity. We show by explicit microscopic calculations how such systems relax toward equilibrium. On relevant time scales, the dynamics is well represented by analytical attractor solutions valid at short times before the onset of Navier-Stokes hydrodynamics.

\[1\] Keisuke Fujii and Tilman Enss, Phys. Rev. Lett. 133, 173402 (2024). \[2\] Aleksas Mazeliauskas and Tilman Enss, Phys. Rev. Lett. 136, 103402 (2026).

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## Lectures

1. [Hydrodynamic attractors in ultracold atoms](https://invisiblenetwork.ai/learn/cern/3025655/d00a974d056a), 1 h 4 min (CERN's player)