Deconfinement at the Argyres-Douglas point in SU(2) gauge theory with broken N=2 supersymmetry

We consider chiral condensates in SU(2) gauge theory with broken N = 2 supe rsymmetry. The matter sector contains an adjoint multiplet and one fundamen tal flavor. Matter and gaugino condensates are determined by integrating ou t the adjoint field. The only nonperturbative input is the Affleck-Dine-Sei berg (ADS) superpotential generated by one instanton plus the Konishi anoma ly. These results are consistent with those obtained by the 'integrating in ' procedure, including a reproduction of the Seiberg-Witten curve from the ADS superpotential. We then calculate monopole, dyon, and charge condensate s using the Seiberg-Witten approach. We show that the monopole and charge c ondensates vanish at the Argyres-Douglas point where the monopole and charg e vacua collide. We interpret this phenomenon as a deconfinement of electri c and magnetic charges at the Argyres-Douglas point. (C) 2000 Elsevier Scie nce B.V. All rights reserved.