Instanton interactions in dense-matter QCD

D.T. Son, M.A. Stephanov, A.R. Zhitnitsky
2001 Physics Letters B  
A Coulomb gas representation of dense-matter QCD is derived from a dual transformation of the low-energy effective Lagrangian. The point-like charges Q=+1,-1 of the gas are identified with the instantons and anti-instantons of such topological charges. An instanton repels another instanton with the same force as it attracts an anti-instanton, in contrast to the semiclassical interaction.
doi:10.1016/s0370-2693(01)00607-4 fatcat:gd7324u7lrc73pyig75cpp6jau