C-PERIODICITY AND THE PHYSICAL MASS IN THE 3-STATE POTTS-MODEL

The standard infinite-volume definition of connected correlation funct ion and particle mass in the 3-state Potts model can be implemented in Monte Carlo simulations by using C-periodic spatial boundary conditio ns. This avoids both the breaking of translation invariance (cold wall b.c.) and the phase-dependent and thus possibly biased evaluation of data (periodic b.c.). The numerical feasibility of the standard defini tions is demonstrated by sample computations on a 24 x 24 x 48 lattice .