Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1995-06-06
Phys.Rev.E54:112-126,1996
Physics
High Energy Physics
High Energy Physics - Lattice
30 pages, Revtex, uuencoded, (nine ps-figures included)
Scientific paper
10.1103/PhysRevE.54.112
A recently developed model of random walks on a $D$-dimensional hyperspherical lattice, where $D$ is {\sl not} restricted to integer values, is extended to include the possibility of creating and annihilating random walkers. Steady-state distributions of random walkers are obtained for all dimensions $D>0$ by solving a discrete eigenvalue problem. These distributions exhibit dimensionally dependent critical behavior as a function of the birth rate. This remarkably simple model exhibits a second-order phase transition with a nontrivial critical exponent for all dimensions $D>0$.
Bender Carl M.
Boettcher Stefan
Meisinger Peter N.
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