97 citations · 290 across the 8 of their papers we have counts for
8 papers
Surface Critical Behavior in Systems with Non-Equilibrium Phase Transitions
Martin Howard, Per Frojdh, Kent Baekgaard Lauritsen
We study the surface critical behavior of branching-annihilating random walks with an even number of offspring (BARW) and directed percolation (DP) using a variety of theoretical t…
Surface Critical Behavior in Systems with Absorbing States
K. B. Lauritsen, P. Frojdh, M. Howard
We present a general scaling theory for the surface critical behavior of non-equilibrium systems with phase transitions into absorbing states. The theory allows for two independent…
Directed Percolation with a Wall or Edge
Per Frojdh, Martin Howard, Kent B. Lauritsen
We examine the effects of introducing a wall or edge into a directed percolation process. Scaling ansatzes are presented for the density and survival probability of a cluster in th…
Crossover from Isotropic to Directed Percolation
Per Frojdh, Marcel den Nijs
Directed percolation is one of the generic universality classes for dynamic processes. We study the crossover from isotropic to directed percolation by representing the combined pr…
Magnetic Impurity in a Luttinger Liquid: A Conformal Field Theory Approach
Per Frojdh, Henrik Johannesson
We study the low-temperature properties of a spin-\onehalf\ magnetic impurity coupled to a one-dimensional interacting electron system. Using the newly developed formalism by Affle…
Interacting Electrons and Localized Spins: Exact Results from Conformal Field Theory
Per Frojdh, Henrik Johannesson
We give a brief review of the Kondo effect in a one-dimensional interacting electron system, and present exact results for the impurity thermodynamic response based on conformal fi…