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

Francesco Del Porro: Charting GLOBs in Asymptotically Safe Gravity


Seminar Date:

Computing the gravitational effective action provides a direct route to charting the landscape of admissible black hole spacetimes and their alternatives, collectively called “gravitationally localized objects” (GLOBs). In this talk, I will provide a proof of principle of this idea within the framework of asymptotic...

Gabriel Assant: Towards theory constraints on ultralight dark matter from quantum gravity


Seminar Date:

Ultralight scalar dark matter may couple to the Standard Model through dimension-five operators that contain the field-strength tensors of the gauge interactions. Recent progress in nuclear clocks is projected to increase the sensitivity to such couplings by several orders of magnitude. Future experimental constrain...

Sarben Sarkar: The axion coupling could accelerate the Universe through PT-symmetric phases


Seminar Date:

The conjecture by Mavromatos and Sarkar that a PT-symmetric phase plays a role in understanding singular renormalisation group (RG) flows for a Chern-Simons (CS) gauge theory of axions, has been reexamined and significantly improved. We have used the more complete Wetterich equation, which includes gravitational cou...

Haridev S R: RG studies of scalar-field models of long-range interactions


Seminar Date:

In this work, we study long-range interactions in non-gravitational field theories and their behaviour in the deep infrared. To model such effects, we consider a nonlocal scalar theory obtained by adding a (\phi \Box^{-1} \phi) term to the local action. Using the functional renormalisation group, we analyse its infr...

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.