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Simulation of a Z(N) Bose System

Simulation of a Z(N) Bose System

This is a simulation of a spin model (a so-called Z(N) model) written in Java. The degrees of freedom of the system are the link variables each of which connect two neighboring grid points of a n-dimensional lattice (grid). The link variables U are complex numbers with an absolute value of 1 and a phase factor f, i.e. U = exp(i f). You can choose the number N of possible values for U (i.e. the group Z(N)) between 2 (the gauged Ising model) and 8. For a given N the phase factor can take the values f = (2 pi n)/N where n varies between 0 and N-1. That means, for N=2 U can be either +1 or -1, in the case of N=4 U is +1, i, -1 or -i, and so on.


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