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Nonperturbative evolution equation for quantum gravity

- M. Reuter
- Physics
- 15 January 1998

A scale-dependent effective action for gravity is introduced and an exact nonperturbative evolution equation is derived which governs its renormalization group flow. It is invariant under general… Expand

Ultraviolet fixed point and generalized flow equation of quantum gravity

- O. Lauscher, M. Reuter
- Physics
- 7 August 2001

A new exact renormalization group equation for the effective average action of Euclidean quantum gravity is constructed. It is formulated in terms of the component fields appearing in the… Expand

Effective Lagrangians in Quantum Electrodynamics

- W. Dittrich, M. Reuter
- Physics
- 11 March 1985

The electron propagator in a constant external magnetic field.- The mass operator in a constant external magnetic field.- The polarization tensor in a constant external magnetic field.- One-loop… Expand

Renormalization group flow of quantum gravity in the Einstein-Hilbert truncation

- M. Reuter, F. Saueressig
- Physics
- 5 October 2001

The exact renormalization group equation for pure quantum gravity is used to derive the nonperturbative \ensuremath{\beta}-functions for the dimensionless Newton constant and cosmological constant on… Expand

Renormalization group improved black hole spacetimes

- A. Bonanno, M. Reuter
- Physics
- 23 February 2000

We study the quantum gravitational effects in spherically symmetric black hole spacetimes. The effective quantum spacetime felt by a pointlike test mass is constructed by ``renormalization group… Expand

The Asymptotic Safety Scenario in Quantum Gravity

- M. Niedermaier, M. Reuter
- PhysicsLiving reviews in relativity
- 1 December 2006

TLDR

Renormalization group improved gravitational actions: A Brans-Dicke approach

A new framework for exploiting information about the renormalization group (RG) behavior of gravity in a dynamical context is discussed. The Einstein-Hilbert action is RG-improved by replacing… Expand

Quantum mechanics as a gauge theory of metaplectic spinor fields

- M. Reuter
- Physics
- 4 April 1998

A hidden gauge theory structure of quantum mechanics which is invisible in its conventional formulation is uncovered. Quantum mechanics is shown to be equivalent to a certain Yang–Mills theory with… Expand

Cosmology of the Planck era from a renormalization group for quantum gravity

- A. Bonanno, M. Reuter
- Physics
- 15 June 2001

Homogeneous and isotropic cosmologies of the Planck era before the classical Einstein equations become valid are studied taking quantum gravitational effects into account. The cosmological evolution… Expand

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