Europhys. Lett, 47 (2), pp. 139-144 (1999)
On the center of mass of Ising vectors
M. Copelli, M. Bouten, C. Van den Broeck and B. Van Rompaey
Limburgs Universitair Centrum - B-3590 Diepenbeek, Belgium
(received 18 January 1999; accepted in final form 19 May 1999)
PACS. 02.50-r - Probability theory, stochastic processes, and
PACS. 87.10+e - Biological and medical physics: General theory and mathematical aspects.
PACS. 64.60Cn - Order-disorder transformations; statistical mechanics of model systems.
We show that the center of mass of Ising vectors that obey some simple constraints, is again an Ising vector.
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