Alexander V. Kurov

collaborators

3 papers

gr-qc2024

Renormalization group flow of projectable Hořava gravity in (3+1) dimensions

Andrei O. Barvinsky, Alexander V. Kurov, Sergey M. Sibiryakov

We report a comprehensive numerical study of the renormalization group flow of marginal couplings in $(3 + 1)$ -dimensional projectable Hořava gravity. First, we classify all fixed po…

hep-th2024

Commutator technique for the heat kernel of minimal higher derivative operators

Andrei O. Barvinsky, Alexander V. Kurov, Władysław Wachowski

We suggest a new technique of the asymptotic heat kernel expansion for minimal higher derivative operators of a generic $2 M$ -th order, $F (\nabla) = (- □)^{M} + \dots$ , in the backgrou…

hep-th2024

On the origin of almost-Gaussian scaling in asymptotically safe quantum gravity

Maximilian Becker, Alexander Kurov, Frank Saueressig

The gravitational asymptotic safety program envisions the high-energy completion of gravity through an interacting renormalization group fixed point, the Reuter fixed point. The pr…