# Enstrophy from symmetry and holography

- Institution: CERN
- Department: Conferences & Workshops
- Speaker: Natalia Pinzani Fokeeva
- Year: 2021
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3014649)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Enstrophy is an approximately conserved quantity in 2+1 dimensional fluid flows that has dramatic consequences for the phenomenology of turbulence: it implies an inverse energy cascade in 2+1 dimensions. In this talk, I will illustrate an algorithm to construct an enstrophy current for fluid flows with various degrees of symmetry, including, but not limited to, the well-known case of non-relativistic (Galilean) fluid flows. Moreover, I will identify the accidental symmetry associated with enstrophy conservation in a recently realized effective action for hydrodynamics. Finally, I will show how horizon symmetries of 3+1 dimensional black holes with Anti-de Sitter asymptotics also lead to enstrophy conservation..

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## Lectures

1. [Enstrophy from symmetry and holography](https://invisiblenetwork.ai/learn/cern/3014649/3853fcf1d764), 47 min (CERN's player)