# Current status of AdS instability

- Institution: CERN
- Department: TH Theoretical Seminar
- Speaker: Andrzej Rostworowski
- Year: 2016
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3000124)
- 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)

I will discuss the dynamics of asymptotically AdS spacetimes from General Relativity perspective. In particular I will present old \[arXiv:1104.3702\] and new \[arXiv:1506.03519\] evidence for the instability of AdS space (maximally symmetric solution of Einstein equations with negative cosmological constant) against gravitational collapse of arbitrarily small initial perturbations. The later was enabled by a powerful resonant approximation suggested in

arXiv:1403.6471 and thoroughly developed in arXiv:1407.6273. On the other hand the negative cosmological constant allows for the existence of stable, time-periodic, asymptotically AdS solutions of Einstein equations \[arXiv:1303.3186\]. .

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## Lectures

1. [Current status of AdS instability](https://invisiblenetwork.ai/learn/cern/3000124/3d450dc5599e), 1 h 7 min (CERN's player)