Wolff algorithm
Encyclopedia
The Wolff algorithm, named after Ulli Wolff, is an algorithm
for Monte Carlo simulation of the Ising model
in which an equal-spin cluster is formed around one spin. That cluster is then flipped. The Wolff algorithm is an improvement over the Swendsen–Wang algorithm because it tends to form bigger clusters.
Algorithm
In mathematics and computer science, an algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Algorithms are used for calculation, data processing, and automated reasoning...
for Monte Carlo simulation of the Ising model
Ising model
The Ising model is a mathematical model of ferromagnetism in statistical mechanics. The model consists of discrete variables called spins that can be in one of two states . The spins are arranged in a graph , and each spin interacts with its nearest neighbors...
in which an equal-spin cluster is formed around one spin. That cluster is then flipped. The Wolff algorithm is an improvement over the Swendsen–Wang algorithm because it tends to form bigger clusters.
External links
- Cluster Algorithms at NetlibNetlibNetlib is a repository of software for scientific computing maintained by AT&T, Bell Laboratories, the University of Tennessee and Oak Ridge National Laboratory. Netlib comprises a large number of separate programs and libraries...