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@@ -0,0 +1,19 @@ + +A library for running the Wolff algorithm on arbitrary systems in arbitrary +fields. A "spin state" and "spin symmetry transformation" type must be +supplied to defined a system, along with a spin-spin coupling, a spin-field +coupling, and a generator of transformations of rank two. The library then +supplies the tools to run Wolff cluster-flip steps on the resulting (for now) +hypercubic lattice system, with arbitrary measurements taken along the way. + +The core code resides in lib. lib/include/wolff.hpp is the principle +interface, but lib/include/wolff/cluster.hpp does the heavy lifting, with +essential data structures defined by lib/include/wolff/graph.h and +lib/include/wolff/state.h. Skimming these files, or reviewing how they are +used in the included examples, should help with their use. The simplest +example is contained in examples/src/models/ising. + +lib/include/wolff/finite_states.h can be invoked when special objects have +been defined to significantly speed computation for systems whose spins have +finitely many states. + |