3 papers
hep-th2005
Asymptotic Safety in Quantum Einstein Gravity: nonperturbative renormalizability and fractal spacetime structure
O. Lauscher, M. Reuter
The asymptotic safety scenario of Quantum Einstein Gravity, the quantum field theory of the spacetime metric, is reviewed and it is argued that the theory is likely to be nonpertur…
hep-th2005
Fractal Spacetime Structure in Asymptotically Safe Gravity
O. Lauscher, M. Reuter
Four-dimensional Quantum Einstein Gravity (QEG) is likely to be an asymptotically safe theory which is applicable at arbitrarily small distance scales. On sub-Planckian distances i…
cond-mat.str-el2004
Renormalization group flows into phases with broken symmetry
Manfred Salmhofer, Carsten Honerkamp, Walter Metzner +1
We describe a way to continue the fermionic renormalization group flow into phases with broken global symmetry. The method does not require a Hubbard-Stratonovich decoupling of the…