Renormalization Group Calculation of Late Stage Interface Dynamics

Renormalization-group Calculation of Color-Coulomb Potential

We report here on the application of the perturbative renormalization-group to the Coulomb gauge in QCD. We use it to determine the high-momentum asymptotic form of the instantaneous color-Coulomb potential V (~k) and of the vacuum polarization P (~k, k4). These quantities are renormalization-group invariants, in the sense that they are independent of the renormalization scheme. A scheme-indepe...

Monte Carlo Renormalization Group Calculation in Λφ

We start by discussing some theoretical issues of renormalization group transformations and Monte Carlo renormalization group technique. A method to compute the anomalous dimension is proposed and investigated. As an application, we find excellent values for critical exponents in λφ43. Some technical questions regarding the hybrid algorithm and strong coupling expansions, used to compute the cr...

Dynamical renormalization group calculation of a two-phase sharp interface model.

The temporal evolution of an interface separating two phases is studied using renormalization group and scaling theory and exact calculation of a sharp interface model incorporating surface tension and kinetic undercooling. Under conditions favoring rapid solidification the characteristic length, R(t), varies as t(1/2) while the total surface area of the interface, S(t), varies as t((d-1)/2). T...

Extended summary of the renormalization group calculation of percolation exponents

Automatic calculation of supersymmetric renormalization group equations and loop corrections

SARAH is a Mathematica package for studying supersymmetric models. It calculates for a given model the masses, tadpole equations and all vertices at tree-level. This information can be used by SARAH to write model files for CalcHep/CompHep or FeynArts/FormCalc. In addition, the second version of SARAH can derive the renormalization group equations for the gauge couplings, parameters of the supe...