The international seminar on asymptotic safety was founded in spring 2011, with the intention of bringing the asymptotic-safety community together, and providing a platform for talks on asymptotic safety in and beyond quantum gravity, as well as related topics in quantum gravity and quantum field theory.

Upcoming seminars

Daniele Rizzo: Quantum gravity contributions to the gauge and Yukawa couplings in proper time flow


Seminar Date:

We derive quantum gravity contributions to the beta functions of the gauge and Yukawa couplings of a matter theory using the Schwinger proper-time flow equation. Working in the Einstein-Hilbert truncation, we investigate the gauge-fixing and regulator dependence of the corresponding renormalization group equations. ...

Angelo P. Chiesa: Towards two-to-two scattering of scalars in asymptotically safe quantum gravity


Seminar Date:

We compute the graviton-mediated two-to-two scattering amplitude and cross section for scalar particles in asymptotically safe quantum gravity. Specifically, we compute the full momentum dependence of the scalar-graviton three-point scattering vertex for spacelike momenta with the functional renormalisation group. W...

Carlos Pastor Marcos: Cosmology from asymptotically safe Proca theories


Seminar Date:

Effective field theories for cosmology offer a powerful framework to investigate the dynamics of space–time and address longstanding open puzzles. In this work, we initiate a programme to analyse the ultraviolet completion of vector–tensor quantum field theories within the asymptotic safety paradigm, focusing on gen...

Yannick Kluth: The perturbative Ricci flow in Gravity


Seminar Date:

We develop a perturbative formulation of the Ricci flow in gravity. Following steps analogous to the gradient flow in QCD, we supplement the usual Feynman rules for perturbative gravity by flowed propagators and vertices as well as graviton flow lines which describe the evolution of gravity along the Ricci flow. By ...

The organizers

If you are interested in attending the seminars and joining the community, please contact Aaron Held or Marc Schiffer to join the corresponding mailing list.

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Astrid Eichhorn

Astrid is Professor in Theoretical Physics at Heidelberg University. She works on quantum gravity and its phenomenology in particle physics, black holes and cosmology.

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Aaron Held

Aaron works on phenomenological constraints in quantum and classical effective field theories of gravity. Currently, DAAD Prime Fellow at Jena University and The Princeton Gravity Initiative.

Marc Schiffer

Marc works on asymptotically safe gravity-matter systems using functional and lattice methods. Currently, Postdoctoral researcher at Radboud University.