# Confinement at Negative Curvature

- Institution: CERN
- Speaker: Victor Gorbenko
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3025486)
- 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)

I will discuss the progress on understanding the structure of confining flux tubes in QCD and related gauge theories. In the first part of the talk I will review prior results which use effective field theory techniques and compare them with the lattice data. In particular, I will emphasize a pseudoscalar massive mode which plays an important role in the flux tube dynamics. In the second part I will switch to very recent and ongoing work in which we place a gauge theory on hyperbolic space to regulate IR divergences. At large curvature radius we recover flat space. At small radius gauge theory is perturbative, however, flux is still confined to a line due to gravitational potential induced by curvature. By changing the radius we can interpolate between the two regimes without running into a phase transition.

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## Lectures

1. [Confinement at Negative Curvature](https://invisiblenetwork.ai/learn/cern/3025486/9c1111dfa4dd), 1 h 11 min (CERN's player)