Color Screening by Pions

Lattice QCD is used to calculate the potential between a static quark and antiquark in the presence of a finite density of pi(+)'s. Correlation functions of multiple pi(+)'s are used in conjunction with Wilson-loop correlators to determine the difference between the Q (Q) over bar potential in free space and in the presence of a pion condensate. The modifications to the potential are found to have significant dependence on the Q (Q) over bar separation over the range r less than or similar to 1 fm explored in this work. Our results are consistent with the pion-condensate behaving as a (nonlinear) chromodielectric.