autoScale. py-A program for automatic finite-size scaling analyses: A user's guide

O Melchert - arXiv preprint arXiv:0910.5403, 2009 - arxiv.org
autoScale. py is a program that performs an automatic finite-size scaling analysis for given
sets of simulated data. It implements a quite general scaling assumption and optimizes an …

Typical and large-deviation properties of minimum-energy paths on disordered hierarchical lattices

O Melchert, AK Hartmann - The European Physical Journal B, 2013 - Springer
We perform numerical simulations to study the optimal path problem on disordered
hierarchical graphs with effective dimension d eff≈ 2.32. Therein, edge energies are drawn …

Upper critical dimension of the negative-weight percolation problem

O Melchert, L Apolo, AK Hartmann - … Review E—Statistical, Nonlinear, and Soft …, 2010 - APS
By means of numerical simulations, we investigate the geometric properties of loops on
hypercubic lattice graphs in dimensions d= 2 through 7, where edge weights are drawn from …

Mean-field behavior of the negative-weight percolation model on random regular graphs

O Melchert, AK Hartmann, M Mézard - … E—Statistical, Nonlinear, and Soft Matter …, 2011 - APS
We investigate both analytically and numerically the ensemble of minimum-weight loops in
the negative-weight percolation model on random graphs with fixed connectivity and …

Paths in the minimally weighted path model are incompatible with Schramm-Loewner evolution

C Norrenbrock, O Melchert, AK Hartmann - Physical Review E—Statistical …, 2013 - APS
We study numerically the geometrical properties of minimally weighted paths that appear in
the minimally weighted path (MWP) model on two-dimensional lattices assuming a …

Configurational statistics of densely and fully packed loops in the negative-weight percolation model

O Melchert, AK Hartmann - The European Physical Journal B, 2011 - Springer
By means of numerical simulations we investigate the configurational properties of densely
and fully packed configurations of loops in the negative-weight percolation (NWP) model. In …

Analysis of the loop length distribution for the negative-weight percolation problem in dimensions through

G Claussen, L Apolo, O Melchert, AK Hartmann - Physical Review E—Statistical …, 2012 - APS
We consider the negative weight percolation (NWP) problem on hypercubic lattice graphs
with fully periodic boundary conditions in all relevant dimensions from d= 2 to the upper …

Biased and greedy random walks on two-dimensional lattices with quenched randomness: The greedy ant within a disordered environment

TL Mitran, O Melchert, AK Hartmann - … E—Statistical, Nonlinear, and Soft Matter …, 2013 - APS
The main characteristics of biased greedy random walks (BGRWs) on two-dimensional
lattices with real-valued quenched disorder on the lattice edges are studied. Here the …

Directed negative-weight percolation

C Norrenbrock, MM Mkrtchian, AK Hartmann - Physical Review E, 2019 - APS
We consider the negative-weight percolation model on directed graphs. In particular, we
study the model on a two-dimensional, weighted, periodic, centered square lattice. Bond …

Negative-weight percolation: review of existing literature and scaling behavior of the path weight in 2d

O Melchert, C Norrenbrock, AK Hartmann - Physics Procedia, 2014 - Elsevier
We consider the negative weight percolation (NWP) problem on hypercubic lattice graphs
with fully periodic boundary condi-tions in all relevant dimensions from d= 2 to the upper …