Polymers configuration density function

In this section, we discuss how one, guided by the principles of nonequilibrium thermodynamics, can use the Monte Carlo technique to drive an ensemble of system configurations to sample statistically appropriate steady-state nonequilibrium phase-space points corresponding to an imposed external field [161,164,193-195]. For simplicity, we limit our discussion to the case of an unentangled polymer melt. The starting point is the probability density function of the generalized canonical... 

Let us now see how correlations can be calculated. In a general way, we consider a function (P(12) of the configuration of the system. In practice, this function imposes that certain points belonging to the polymer chain are fixed at definite space points which we call anchoring points. For instance, the function 0(L) could be the density of area at the point of position vector r, namely... 

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