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

Ivano Basile: Asymptotic safety, quantum gravity, and the swampland: a conceptual assessment


Seminar Date:

The swampland program attempts to elucidate and organize our understanding of quantum gravity from the bottom up. In light of its developments, I will present a conceptual assessment of the asymptotic safety scenario, collecting, connecting and revisiting several considerations scattered in the literature. The main ...

Alicia Castro: Towards a quantitative characterization of gravitational universality classes for order-4 random tensor models


Seminar Date:

Random tensor models can be used as combinatorial devices to generate Euclidean dynamical triangulations. A physical continuum limit of dynamical triangulations requires a suitable generalization of the double-scaling limit of random matrices. This limit corresponds to a fixed point of a pregeometric Renormalization...

Benjamin Knorr: Asymptotically (un)safe scattering amplitudes from scratch: a deep dive into the IR jungle


Seminar Date:

We compute leading order quantum gravity contributions to a simple scalar scattering amplitude in Asymptotic Safety. Our model admits an analytic treatment so that several subtleties can be analysed. We find that (i) the existence of an asymptotically safe renormalisation group fixed point alone does not imply the b...

Sara Rufrano Aliberti: Asymptotic Safety in Generalized Proca Theories


Seminar Date:

Generalized Proca Theories are the most general higher-derivative extensions of a massive vector field that retain second-order equations of motion. They are phenomenologically interesting as models of dynamical dark energy that, unlike scalar-tensor theories, can naturally accommodate cosmological anisotropies. A k...

Yadikaer Maitiniyazi: Scaling solutions for gauge invariant flow equations in dilaton quantum gravity


Seminar Date:

We investigate the effects of quantum gravity for models of a scalar singlet coupled to the metric. Such models describe inflation for early cosmology and dynamical dark energy for late cosmology. We work within the variable gravity approximation" keeping in the effective action an arbitrary field dependence for ter...

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.