1,579 research outputs found
Dynamical Scaling from Multi-Scale Measurements
We present a new measure of the Dynamical Critical behavior: the "Multi-scale
Dynamical Exponent (MDE)"Comment: 9 pages,Latex, Request figures from [email protected]
Some Comments on Multigrid Methods for Computing Propagators
I make three conceptual points regarding multigrid methods for computing
propagators in lattice gauge theory: 1) The class of operators handled by the
algorithm must be stable under coarsening. 2) Problems related by symmetry
should have solution methods related by symmetry. 3) It is crucial to
distinguish the vector space from its dual space . All the existing
algorithms violate one or more of these principles.Comment: 16 pages, LaTeX plus subeqnarray.sty (included at end),
NYU-TH-93/07/0
An algorithm for constructing and classifying the space of small integer weighing matrices
In this paper we describe an algorithm for generating all the possible
- integer Weighing matrices of weight up to
Hadamard equivalence. Our method is efficient on a personal computer for small
size matrices, up to , and . As a by product we also
improved the \textit{\textbf{nsoks}} \cite{riel2006nsoks} algorithm to find all
possible representations of an integer as a sum of integer squares.
We have implemented our algorithm in \texttt{Sagemath} and as an example we
provide a complete classification for \ and . Our list of
can serve as a step towards finding the open classical weighing
matrix
A Cluster Algorithm for the Kalb-Ramond Model
A cluster algorithm is presented for the Kalb-Ramond plaquette model in
four dimensions which dramatically reduces critical slowing. The critical
exponent is reduced from (standard Metropolis algorithm) to . The Cluster algorithm updates the monopole configuration known to
be responsible for the second order phase transition.Comment: 9 pages, LaTeX + 7 figures in self-extracting shell archiv
- …