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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > A variational approach to Phi^4_3

## A variational approach to Phi^4_3Add to your list(s) Download to your calendar using vCal - Massimiliano Gubinelli (Universität Bonn)
- Monday 19 November 2018, 11:00-12:30
- Seminar Room 2, Newton Institute.
If you have a question about this talk, please contact info@newton.ac.uk. SRQ - Scaling limits, rough paths, quantum field theory I will introduce a variational description of perturbations of Gaussian measures. In the case of the $\Phi^4_3$ measure I will explain how to use the variational formula to prove ultraviolet stability in finite volume and discuss the possibility of an explicit formula for the Laplace transform of the measure after UV cutoff removal. I will describe how the control problem is (heuristically, at the moment) linked with Wilson’s flow equation for the effective potential. This talk is based on joint work with N. Barashkov (Bonn). This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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