# Flat Minkowski solutions from M-theory on G2 structure manifolds

- Institution: CERN
- Department: TH institutes
- Speaker: Giuseppe Dibitetto
- Year: 2019
- Language: English
- Subjects: Mathematics
- Source: [CERN](https://videos.cern.ch/record/3016156)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

I will consider dimensional reductions of M-theory on G2 structure manifolds with arbitrary constant torsion. I will construct a novel family of non-supersymmetric Minkowski extrema. These solutions are supported by pure geometry with no extra need for gauge fluxes and possess a tachyon free perturbative mass spectrum, up to a single flat direction. Such a direction corresponds to the overall internal volume, with respect to which the scalar potential exhibits a no-scale behavior. I will then conclude by discussing a possible mechanism to lift the flat direction to give it a positive squared mass while turning Mkw into dS. The construction makes use of the combined effect of flux and higher curvature corrections..

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## Lectures

1. [Flat Minkowski solutions from M-theory on G2 structure manifolds](https://invisiblenetwork.ai/learn/cern/3016156/47d8cf4a5433), 54 min (CERN's player)