Gabriel Assant: Spectral Functions of Lorentzian Quantum Gravity
We compute spectral functions of graviton modes in Lorentzian quantum gravity, interpolating between classical general relativity and an asymptotically safe ...
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Benjamin Knorr: The pole truth: an analytical graviton propagator from Asymptotic Safety
We derive an analytical approximation for the graviton propagator from Asymptotic Safety. We find neither extra poles nor indications of unitarity or causali...
Giovanni Oglialoro: Towards gauge independence in asymptotically safe quantum gravity
We study gauge dependence in proper-time renormalisation group flows for asymptotically safe quantum gravity. Working in an essential scheme, we use field re...
Alexey Kalugin: Beyond Schwinger-DeWitt: higher-order minimal and nonminimal operators, off-diagonal expansions for operator functions, and Mellin-Barnes representations
We present an overview of generalizations of the heat kernel technique, a fundamental tool in QFT, gauge theory, and quantum gravity. As the classical Schwin...