16 citations · 73 across the 12 of their papers we have counts for
5 papers · 1 filter
1-Loop improved lattice action for the nonlinear sigma-model
M. Bartels, G. Mack, G. Palma
In this paper we show the Wilson effective action for the 2-dimensional O(N+1)-symmetric lattice nonlinear sigma-model computed in the 1-loop approximation for the nonlinear choice…
Self-consistent Calculation of Real Space Renormalization Group Flows and Effective Potentials
M. Griessl, G. Mack, G. Palma +1
We show how to compute real space renormalization group flows in lattice field theory by a self-consistent method. In each step, the integration over the fluctuation field (high fr…
Perfect 3-Dimensional Lattice Actions for 4-Dimensional Quantum Field Theories at Finite Temperature
U. Kerres, G. Mack, G. Palma
We propose a two-step procedure to study the order of phase transitions at finite temperature in electroweak theory and in simplified models thereof. In a first step a coarse grain…
A Self Consistent Study of the Phase Transition in the Scalar Electroweak Theory at Finite Temperature
U. Kerres, G. Mack, G. Palma
We propose the study of the phase transition in the scalar electroweak theory at finite temperature by a two - step method. It combines i) dimensional reduction to a 3-dimensional…
Effective Field Theories
G. Mack, T. Kalkreuter, G. Palma +1
Effective field theories encode the predictions of a quantum field theory at low energy. The effective theory has a fairly low ultraviolet cutoff. As a result, loop corrections are…